# MiniWebtool API > Ready-made JSON API for calculators, text utilities, hashes, and finance math. > Hosted formulas, validation, examples, docs, and stable response schemas. > One bearer token, one credit pool, one versioned schema per tool. ## What this API is A collection of small, pure-function HTTP endpoints. Each endpoint takes a JSON input, runs a deterministic computation, returns a JSON output. Low-risk tools are deterministic; random generators explicitly declare non-deterministic behavior. No LLMs or external-service dependencies are exposed in the core catalog. Use this API when an app or AI agent needs exact utility results without rebuilding arithmetic, formatting, hashing, or finance logic. - Docs: https://api.miniwebtool.com/docs.md - OpenAPI 3.1: https://api.miniwebtool.com/v1/openapi.json - MCP endpoint: https://api.miniwebtool.com/mcp - Sitemap: https://api.miniwebtool.com/sitemap.xml ## Authentication Bearer token in the Authorization header: Authorization: Bearer mwt_live_... Keys are obtained by signing up at the portal. Free tier available. ## Billing model Every tool has a fixed `credit_weight`. Each successful call deducts that many credits from the organization's monthly pool. Failed calls (validation errors, 5xx) don't bill. ## Core docs - [Overview](https://api.miniwebtool.com/index.md): MiniWebtool API overview and entry points. - [Concepts](https://api.miniwebtool.com/docs.md): Authentication, errors, rate limits, credits, versioning, MCP, and privacy. - [Tool catalog](https://api.miniwebtool.com/tools.md): Searchable catalog of all API tools. - [Full documentation snapshot](https://api.miniwebtool.com/llms-full.txt): Single-file corpus for long-context agents. - [Agent skill](https://api.miniwebtool.com/skill.md): Product-specific operating guidance for agents. ## Tool categories - [Color](https://api.miniwebtool.com/tools/category/color.md): 3 endpoints. - [Construction](https://api.miniwebtool.com/tools/category/construction.md): 5 endpoints. - [Conversion](https://api.miniwebtool.com/tools/category/conversion.md): 1 endpoints. - [Converters](https://api.miniwebtool.com/tools/category/converters.md): 1 endpoints. - [Cooking](https://api.miniwebtool.com/tools/category/cooking.md): 8 endpoints. - [Craft](https://api.miniwebtool.com/tools/category/craft.md): 1 endpoints. - [Creator](https://api.miniwebtool.com/tools/category/creator.md): 1 endpoints. - [Datetime](https://api.miniwebtool.com/tools/category/datetime.md): 2 endpoints. - [Dev](https://api.miniwebtool.com/tools/category/dev.md): 7 endpoints. - [Developer](https://api.miniwebtool.com/tools/category/developer.md): 6 endpoints. - [Electronics](https://api.miniwebtool.com/tools/category/electronics.md): 4 endpoints. - [Engineering](https://api.miniwebtool.com/tools/category/engineering.md): 1 endpoints. - [Environment](https://api.miniwebtool.com/tools/category/environment.md): 1 endpoints. - [Event](https://api.miniwebtool.com/tools/category/event.md): 1 endpoints. - [Finance](https://api.miniwebtool.com/tools/category/finance.md): 104 endpoints. Exact interest, mortgage, APY, and other money math. - [Hash & Checksum](https://api.miniwebtool.com/tools/category/hash.md): 6 endpoints. SHA, MD5, HMAC, and digest utilities with stable JSON output. - [Lifestyle](https://api.miniwebtool.com/tools/category/lifestyle.md): 6 endpoints. - [Marketing](https://api.miniwebtool.com/tools/category/marketing.md): 1 endpoints. - [Math](https://api.miniwebtool.com/tools/category/math.md): 238 endpoints. Percentage, unit conversion, geometry, and sequences. - [Miscellaneous](https://api.miniwebtool.com/tools/category/miscellaneous.md): 4 endpoints. - [Physics](https://api.miniwebtool.com/tools/category/physics.md): 1 endpoints. - [Random](https://api.miniwebtool.com/tools/category/random.md): 12 endpoints. Random generators for apps, tests, and automations. - [Science](https://api.miniwebtool.com/tools/category/science.md): 35 endpoints. - [Sports](https://api.miniwebtool.com/tools/category/sports.md): 13 endpoints. - [Text](https://api.miniwebtool.com/tools/category/text.md): 31 endpoints. Word / character / line counters, whitespace, case, encoding. - [Time Date](https://api.miniwebtool.com/tools/category/time-date.md): 9 endpoints. - [Webmaster](https://api.miniwebtool.com/tools/category/webmaster.md): 8 endpoints. DNS, HTTP, meta, robots, and other webmaster utilities. ## Available tools - [Color Contrast Checker](https://api.miniwebtool.com/tools/color-contrast-checker.md) (slug: `color-contrast-checker`, category: Color · Accessibility, cost: 1cr) — Check WCAG contrast ratio and AA/AAA compliance for two colors. - [Color Code Converter](https://api.miniwebtool.com/tools/color-code-converter-all-formats.md) (slug: `color-code-converter-all-formats`, category: Color · Conversion, cost: 1cr) — Convert HEX, RGB, HSL, HSV, CMYK, and common CSS named colors. - [Color Scheme Generator](https://api.miniwebtool.com/tools/color-scheme-generator.md) (slug: `color-scheme-generator`, category: Color · Palette, cost: 1cr) — Generate complementary, analogous, triadic, square, tetradic, and monochromatic palettes. - [Board Foot Calculator](https://api.miniwebtool.com/tools/board-foot-calculator.md) (slug: `board-foot-calculator`, category: Construction · Lumber, cost: 1cr) — Calculate lumber volume in board feet, cubic volume, weight, and optional cost. - [Carpet Calculator](https://api.miniwebtool.com/tools/carpet-calculator.md) (slug: `carpet-calculator`, category: Construction · Materials, cost: 1cr) — Estimate carpet area, waste, roll length, padding, installation, and cost. - [Decking Calculator](https://api.miniwebtool.com/tools/decking-calculator.md) (slug: `decking-calculator`, category: Construction · Materials, cost: 1cr) — Estimate decking boards, joists, beams, posts, fasteners, and waste. - [Tile Calculator](https://api.miniwebtool.com/tools/tile-calculator.md) (slug: `tile-calculator`, category: Construction · Materials, cost: 1cr) — Estimate tile count, boxes, grout, adhesive, sealer, waste, and optional cost. - [Wallpaper Calculator](https://api.miniwebtool.com/tools/wallpaper-calculator.md) (slug: `wallpaper-calculator`, category: Construction · Materials, cost: 1cr) — Estimate wallpaper drops, rolls, waste, coverage, and optional cost. - [Fuel Efficiency Converter](https://api.miniwebtool.com/tools/fuel-efficiency-converter-mpg-l-100km-km-l.md) (slug: `fuel-efficiency-converter-mpg-l-100km-km-l`, category: Conversion · Fuel, cost: 1cr) — Convert MPG, L/100km, km/L, and miles/L fuel-efficiency values. - [Torque Converter](https://api.miniwebtool.com/tools/torque-converter-nm-ft-lb-kgf-cm.md) (slug: `torque-converter-nm-ft-lb-kgf-cm`, category: Converters · Torque, cost: 1cr) — Convert torque between Nm, ft-lb, in-lb, kgf-cm, kgf-m, dyn-cm, oz-in, and oz-ft. - [Baking Pan Size Converter](https://api.miniwebtool.com/tools/baking-pan-size-converter.md) (slug: `baking-pan-size-converter`, category: Cooking · Baking, cost: 1cr) — Scale a recipe when switching between common baking pan sizes. - [Dough Hydration Calculator](https://api.miniwebtool.com/tools/dough-hydration-calculator.md) (slug: `dough-hydration-calculator`, category: Cooking · Baking, cost: 1cr) — Calculate dough hydration, required water, or a simple baker's percentage recipe. - [Coffee Brew Ratio Calculator](https://api.miniwebtool.com/tools/coffee-brew-ratio-calculator.md) (slug: `coffee-brew-ratio-calculator`, category: Cooking · Coffee, cost: 1cr) — Calculate coffee and water amounts for common brewing methods and strengths. - [Cooking Unit Converter](https://api.miniwebtool.com/tools/cooking-unit-converter.md) (slug: `cooking-unit-converter`, category: Cooking · Conversion, cost: 1cr) — Convert cooking volume and weight units using ingredient density. - [Cups to Grams Converter](https://api.miniwebtool.com/tools/cups-to-grams-converter.md) (slug: `cups-to-grams-converter`, category: Cooking · Conversion, cost: 1cr) — Convert cups to grams for common cooking ingredients. - [Yeast Conversion Calculator](https://api.miniwebtool.com/tools/yeast-conversion-calculator.md) (slug: `yeast-conversion-calculator`, category: Cooking · Conversions, cost: 1cr) — Convert fresh, active dry, and instant yeast amounts. - [Brine and Salinity Calculator](https://api.miniwebtool.com/tools/brine-and-salinity-calculator.md) (slug: `brine-and-salinity-calculator`, category: Cooking · Fermentation, cost: 1cr) — Calculate salt, water, or salinity for brines and fermentation recipes. - [Baker's Percentage Calculator](https://api.miniwebtool.com/tools/baker-s-percentage-calculator.md) (slug: `baker-s-percentage-calculator`, category: Cooking · Ratios, cost: 1cr) — Scale bread ingredients from flour weight and baker's percentages. - [Cross-Stitch Size Calculator](https://api.miniwebtool.com/tools/cross-stitch-size-calculator.md) (slug: `cross-stitch-size-calculator`, category: Craft · Sizing, cost: 1cr) — Calculate finished cross-stitch design and fabric sizes from stitch and fabric counts. - [YouTube Earnings Estimator](https://api.miniwebtool.com/tools/youtube-earnings-estimator.md) (slug: `youtube-earnings-estimator`, category: Creator · Revenue, cost: 1cr) — Estimate YouTube ad revenue from views, CPM range, monetized percentage, and revenue share. - [Autumnal Equinox Day](https://api.miniwebtool.com/tools/autumnal-equinox-day.md) (slug: `autumnal-equinox-day`, category: Datetime · Seasons, cost: 1cr) — Return autumn equinox date, UTC time, seasonal markers, and optional countdown data. - [Decimal to Time Converter](https://api.miniwebtool.com/tools/decimal-to-time-converter.md) (slug: `decimal-to-time-converter`, category: Datetime · Time, cost: 1cr) — Convert decimal hours to hours, minutes, and seconds. - [CMYK to Hex Converter](https://api.miniwebtool.com/tools/cmyk-to-hex-converter.md) (slug: `cmyk-to-hex-converter`, category: Dev · Color, cost: 1cr) — Convert CMYK percentages to RGB, HEX, HSL, HSV, and contrast text color. - [Hex to CMYK Converter](https://api.miniwebtool.com/tools/hex-to-cmyk-converter.md) (slug: `hex-to-cmyk-converter`, category: Dev · Color, cost: 1cr) — Convert a hex color to CMYK print percentages. - [Hex to RGB Converter](https://api.miniwebtool.com/tools/hex-to-rgb-converter.md) (slug: `hex-to-rgb-converter`, category: Dev · Color, cost: 1cr) — Convert a hex color to RGB, HSL, CMYK, and contrast metrics. - [RGB to Hex Converter](https://api.miniwebtool.com/tools/rgb-to-hex-converter.md) (slug: `rgb-to-hex-converter`, category: Dev · Color, cost: 1cr) — Convert RGB channels to hex, HSL, HSV, CMYK, and relative luminance. - [Base64 Decoder](https://api.miniwebtool.com/tools/base64-decoder.md) (slug: `base64-decoder`, category: Dev · Encoding, cost: 1cr) — Decode standard or URL-safe Base64 text and return byte and character analysis. - [Cron Job Generator](https://api.miniwebtool.com/tools/cron-job-generator.md) (slug: `cron-job-generator`, category: Dev · Scheduling, cost: 1cr) — Generate a cron expression from common schedule presets. - [Crontab Expression Generator](https://api.miniwebtool.com/tools/crontab-expression-generator.md) (slug: `crontab-expression-generator`, category: Dev · Scheduling, cost: 1cr) — Build and validate a crontab expression from individual fields. - [XML to JSON Converter](https://api.miniwebtool.com/tools/xml-to-json-converter.md) (slug: `xml-to-json-converter`, category: Developer · Data Conversion, cost: 1cr) — Convert XML into JSON using standard, compact, JsonML, or preserve styles. - [YAML Formatter/Validator](https://api.miniwebtool.com/tools/yaml-formatter-validator.md) (slug: `yaml-formatter-validator`, category: Developer · Data Formatting, cost: 1cr) — Validate, format, minify, or convert YAML to JSON. - [XML Validator](https://api.miniwebtool.com/tools/xml-validator.md) (slug: `xml-validator`, category: Developer · Data Validation, cost: 1cr) — Validate XML well-formedness and return document statistics. - [Text to Binary/Hex/ASCII Converter](https://api.miniwebtool.com/tools/text-to-binary-hex-ascii-converter.md) (slug: `text-to-binary-hex-ascii-converter`, category: Developer · Encoders, cost: 1cr) — Encode or decode text, binary, hex, and ASCII byte values. - [Unix Permission Calculator](https://api.miniwebtool.com/tools/unix-permission-calculator.md) (slug: `unix-permission-calculator`, category: Developer · General Tools, cost: 1cr) — Convert Unix permission digits into symbolic permissions and chmod notation. - [Text to SQL List Converter](https://api.miniwebtool.com/tools/text-to-sql-list-converter.md) (slug: `text-to-sql-list-converter`, category: Developer · Text Conversion, cost: 1cr) — Convert lines of text into quoted SQL IN-list or tuple syntax. - [Transformer Calculator](https://api.miniwebtool.com/tools/transformer-calculator.md) (slug: `transformer-calculator`, category: Electronics · Circuits, cost: 1cr) — Calculate transformer turns ratio, secondary voltage, current, power, and impedance ratio. - [Voltage Divider Calculator](https://api.miniwebtool.com/tools/voltage-divider-calculator.md) (slug: `voltage-divider-calculator`, category: Electronics · Circuits, cost: 1cr) — Calculate voltage divider output or solve for R1 or R2. - [Battery Life Calculator](https://api.miniwebtool.com/tools/battery-life-calculator.md) (slug: `battery-life-calculator`, category: Electronics · Runtime, cost: 1cr) — Estimate battery runtime from capacity, consumption, and efficiency. - [Voltage Drop Calculator](https://api.miniwebtool.com/tools/voltage-drop-calculator.md) (slug: `voltage-drop-calculator`, category: Electronics · Wiring, cost: 1cr) — Calculate electrical voltage drop for AWG copper or aluminum wire runs. - [Wire Gauge Calculator](https://api.miniwebtool.com/tools/wire-gauge-calculator.md) (slug: `wire-gauge-calculator`, category: Engineering · Electrical, cost: 1cr) — Calculate AWG diameter, area, resistance, ampacity, and optional voltage drop. - [Water Usage Calculator](https://api.miniwebtool.com/tools/water-usage-calculator.md) (slug: `water-usage-calculator`, category: Environment · Household, cost: 1cr) — Estimate household daily, monthly, and annual water use by activity. - [Wedding Alcohol Calculator](https://api.miniwebtool.com/tools/wedding-alcohol-calculator.md) (slug: `wedding-alcohol-calculator`, category: Event · Planning, cost: 1cr) — Estimate wine, beer, spirits, and champagne quantities for an event. - [Car Depreciation Calculator](https://api.miniwebtool.com/tools/car-depreciation-calculator.md) (slug: `car-depreciation-calculator`, category: Finance · Auto, cost: 2cr) — Estimate vehicle depreciation using a declining-balance annual rate. - [Car Lease Calculator](https://api.miniwebtool.com/tools/car-lease-calculator.md) (slug: `car-lease-calculator`, category: Finance · Auto, cost: 2cr) — Estimate monthly auto lease payment from cap cost, residual value, money factor, tax, and fees. - [Bond Equivalent Yield Calculator](https://api.miniwebtool.com/tools/bond-equivalent-yield-calculator.md) (slug: `bond-equivalent-yield-calculator`, category: Finance · Bonds, cost: 2cr) — Calculate bond equivalent yield for a discount security. - [Zero Coupon Bond Calculator](https://api.miniwebtool.com/tools/zero-coupon-bond-calculator.md) (slug: `zero-coupon-bond-calculator`, category: Finance · Bonds, cost: 2cr) — Calculate zero coupon bond price or yield to maturity. - [Credit Card Interest Calculator](https://api.miniwebtool.com/tools/credit-card-interest-calculator.md) (slug: `credit-card-interest-calculator`, category: Finance · Credit, cost: 2cr) — Estimate credit card payoff time, interest cost, and payment strategy savings. - [Credit Card Payment Calculator](https://api.miniwebtool.com/tools/credit-card-payment-calculator.md) (slug: `credit-card-payment-calculator`, category: Finance · Credit Card Calculators, cost: 1cr) — Calculate the fixed monthly payment needed to pay off a credit card balance over a chosen number of months. - [Credit Card Payoff Calculator](https://api.miniwebtool.com/tools/credit-card-payoff-calculator.md) (slug: `credit-card-payoff-calculator`, category: Finance · Credit Card Calculators, cost: 1cr) — Estimate how long a credit card payoff plan will take and how much interest it costs. - [Debt Consolidation Calculator](https://api.miniwebtool.com/tools/debt-consolidation-calculator.md) (slug: `debt-consolidation-calculator`, category: Finance · Debt, cost: 2cr) — Estimate a consolidated debt payment and interest cost. - [Debt Coverage Ratio Calculator](https://api.miniwebtool.com/tools/debt-coverage-ratio-calculator.md) (slug: `debt-coverage-ratio-calculator`, category: Finance · Debt, cost: 2cr) — Calculate debt service coverage ratio from NOI and debt service, or build NOI from property inputs. - [Debt to Income Ratio Calculator](https://api.miniwebtool.com/tools/debt-to-income-ratio-calculator.md) (slug: `debt-to-income-ratio-calculator`, category: Finance · Debt, cost: 2cr) — Calculate debt-to-income ratio from monthly income and debt payments. - [Fixed Charge Coverage Ratio Calculator](https://api.miniwebtool.com/tools/fixed-charge-coverage-ratio-calculator.md) (slug: `fixed-charge-coverage-ratio-calculator`, category: Finance · Debt, cost: 2cr) — Calculate fixed charge coverage ratio with optional EBITDA and principal-payment adjustments. - [Interest Coverage Ratio Calculator](https://api.miniwebtool.com/tools/interest-coverage-ratio-calculator.md) (slug: `interest-coverage-ratio-calculator`, category: Finance · Debt, cost: 2cr) — Calculate EBIT or EBITDA based interest coverage ratio. - [Times Interest Earned Ratio Calculator](https://api.miniwebtool.com/tools/times-interest-earned-ratio-calculator.md) (slug: `times-interest-earned-ratio-calculator`, category: Finance · Debt, cost: 2cr) — Calculate times interest earned ratio and interest coverage safety margin. - [Debt Payoff Calculator](https://api.miniwebtool.com/tools/debt-payoff-calculator.md) (slug: `debt-payoff-calculator`, category: Finance · Debt Calculators, cost: 1cr) — Compare debt snowball and avalanche payoff strategies for a small list of debts. - [Actual Cash Value Calculator](https://api.miniwebtool.com/tools/actual-cash-value-calculator.md) (slug: `actual-cash-value-calculator`, category: Finance · Depreciation, cost: 1cr) — Calculate actual cash value from replacement cost, age, lifespan, salvage, and depreciation method. - [Discount Calculator](https://api.miniwebtool.com/tools/discount-calculator.md) (slug: `discount-calculator`, category: Finance · Discounts, cost: 1cr) — Calculate final price, savings, tax, stacked discounts, or BOGO deals. - [Percent Off Calculator](https://api.miniwebtool.com/tools/percent-off-calculator.md) (slug: `percent-off-calculator`, category: Finance · Discounts, cost: 1cr) — Calculate discount amount and sale price from original price and percent off. - [Average Collection Period Calculator](https://api.miniwebtool.com/tools/average-collection-period-calculator.md) (slug: `average-collection-period-calculator`, category: Finance · Efficiency, cost: 2cr) — Calculate average collection period, receivables turnover, and industry benchmark spread. - [Debtor Days Calculator](https://api.miniwebtool.com/tools/debtor-days-calculator.md) (slug: `debtor-days-calculator`, category: Finance · Efficiency, cost: 2cr) — Calculate debtor days, receivables ratio, and working capital above a 30-day target. - [Fixed Asset Turnover Calculator](https://api.miniwebtool.com/tools/fixed-asset-turnover-calculator.md) (slug: `fixed-asset-turnover-calculator`, category: Finance · Efficiency, cost: 2cr) — Measure revenue generated per dollar of net fixed assets. - [Inventory Turnover Calculator](https://api.miniwebtool.com/tools/inventory-turnover-calculator.md) (slug: `inventory-turnover-calculator`, category: Finance · Efficiency, cost: 2cr) — Calculate inventory turnover, days sales in inventory, and annualized turnover. - [Receivables Turnover Ratio Calculator](https://api.miniwebtool.com/tools/receivables-turnover-ratio-calculator.md) (slug: `receivables-turnover-ratio-calculator`, category: Finance · Efficiency, cost: 2cr) — Calculate receivables turnover and days sales outstanding. - [Total Asset Turnover Calculator](https://api.miniwebtool.com/tools/total-asset-turnover-calculator.md) (slug: `total-asset-turnover-calculator`, category: Finance · Efficiency, cost: 2cr) — Measure revenue generated per dollar of average total assets. - [Goodwill to Assets Ratio Calculator](https://api.miniwebtool.com/tools/goodwill-to-assets-ratio-calculator.md) (slug: `goodwill-to-assets-ratio-calculator`, category: Finance · Financial Ratio, cost: 2cr) — Calculate goodwill-to-assets ratio and tangible asset share. - [Retention Ratio Calculator](https://api.miniwebtool.com/tools/retention-ratio-calculator.md) (slug: `retention-ratio-calculator`, category: Finance · Financial Ratio, cost: 2cr) — Calculate retention ratio, payout ratio, and retained earnings. - [APR Calculator](https://api.miniwebtool.com/tools/apr-calculator.md) (slug: `apr-calculator`, category: Finance · Interest, cost: 2cr) — Calculate true APR from loan amount, rolled-in fees, nominal rate, and term. - [APR to APY Calculator](https://api.miniwebtool.com/tools/apr-to-apy-calculator.md) (slug: `apr-to-apy-calculator`, category: Finance · Interest, cost: 2cr) — Convert APR to APY for a selected compounding frequency. - [APY Calculator](https://api.miniwebtool.com/tools/apy-calculator.md) (slug: `apy-calculator`, category: Finance · Interest, cost: 2cr) — Calculate annual percentage yield and compound growth. - [APY to APR Calculator](https://api.miniwebtool.com/tools/apy-to-apr-calculator.md) (slug: `apy-to-apr-calculator`, category: Finance · Interest, cost: 2cr) — Convert APY back to nominal APR for a compounding frequency. - [Compound Interest Calculator](https://api.miniwebtool.com/tools/compound-interest-calculator.md) (slug: `compound-interest-calculator`, category: Finance · Interest, cost: 2cr) — Compound-interest formula with selectable compounding frequency. - [Continuous Compounding Calculator](https://api.miniwebtool.com/tools/continuous-compounding-calculator.md) (slug: `continuous-compounding-calculator`, category: Finance · Interest, cost: 1cr) — Calculate future value and interest with continuous compounding. - [Doubling Time Calculator](https://api.miniwebtool.com/tools/doubling-time-calculator.md) (slug: `doubling-time-calculator`, category: Finance · Interest, cost: 1cr) — Calculate exact doubling time, Rule of 72 estimates, or the rate required to double. - [Effective Interest Rate Calculator](https://api.miniwebtool.com/tools/effective-interest-rate-calculator.md) (slug: `effective-interest-rate-calculator`, category: Finance · Interest, cost: 2cr) — Convert a nominal interest rate to its effective annual rate. - [Effective Yield Calculator](https://api.miniwebtool.com/tools/effective-yield-calculator.md) (slug: `effective-yield-calculator`, category: Finance · Interest, cost: 2cr) — Calculate effective annual yield from nominal APR and compounding frequency. - [Interest Rate Calculator](https://api.miniwebtool.com/tools/interest-rate-calculator.md) (slug: `interest-rate-calculator`, category: Finance · Interest, cost: 2cr) — Solve the implied annual interest rate from principal, term, and monthly payment. - [Nominal Interest Rate Calculator](https://api.miniwebtool.com/tools/nominal-interest-rate-calculator.md) (slug: `nominal-interest-rate-calculator`, category: Finance · Interest, cost: 2cr) — Convert an effective annual rate to a nominal annual rate. - [Simple Interest Calculator](https://api.miniwebtool.com/tools/simple-interest-calculator.md) (slug: `simple-interest-calculator`, category: Finance · Interest, cost: 2cr) — Simple-interest formula: I = P * r * t. - [Stock Profit Loss Calculator](https://api.miniwebtool.com/tools/stock-profit-loss-calculator.md) (slug: `stock-profit-loss-calculator`, category: Finance · Investing, cost: 2cr) — Calculate stock trade profit, loss, ROI, and breakeven price. - [Capital Employed Calculator](https://api.miniwebtool.com/tools/capital-employed-calculator.md) (slug: `capital-employed-calculator`, category: Finance · Investment, cost: 2cr) — Calculate capital employed by common balance-sheet methods and optional ROCE. - [WACC Calculator](https://api.miniwebtool.com/tools/wacc-calculator.md) (slug: `wacc-calculator`, category: Finance · Investment, cost: 1cr) — Calculate weighted average cost of capital and component contributions. - [Debt to Asset Ratio Calculator](https://api.miniwebtool.com/tools/debt-to-asset-ratio-calculator.md) (slug: `debt-to-asset-ratio-calculator`, category: Finance · Leverage, cost: 2cr) — Calculate debt-to-asset ratio, equity ratio, and optional industry benchmark spread. - [Debt to Equity Ratio Calculator](https://api.miniwebtool.com/tools/debt-to-equity-ratio-calculator.md) (slug: `debt-to-equity-ratio-calculator`, category: Finance · Leverage, cost: 2cr) — Calculate debt-to-equity ratio, equity multiplier, and capital structure shares. - [Equity Ratio Calculator](https://api.miniwebtool.com/tools/equity-ratio-calculator.md) (slug: `equity-ratio-calculator`, category: Finance · Leverage, cost: 2cr) — Calculate equity ratio, debt ratio, equity multiplier, and industry benchmark spread. - [Cash Ratio Calculator](https://api.miniwebtool.com/tools/cash-ratio-calculator.md) (slug: `cash-ratio-calculator`, category: Finance · Liquidity, cost: 2cr) — Calculate cash ratio from cash, marketable securities, and current liabilities. - [Current Ratio Calculator](https://api.miniwebtool.com/tools/current-ratio-calculator.md) (slug: `current-ratio-calculator`, category: Finance · Liquidity, cost: 2cr) — Calculate current ratio and working capital from current assets and liabilities. - [Loan to Deposit Ratio Calculator](https://api.miniwebtool.com/tools/loan-to-deposit-ratio-calculator.md) (slug: `loan-to-deposit-ratio-calculator`, category: Finance · Liquidity, cost: 2cr) — Calculate bank loan-to-deposit ratio, deposit coverage, and liquidity status. - [Quick Ratio Calculator](https://api.miniwebtool.com/tools/quick-ratio-calculator.md) (slug: `quick-ratio-calculator`, category: Finance · Liquidity, cost: 2cr) — Calculate quick ratio, quick assets, current ratio, and liquidity rating. - [Amortization Calculator](https://api.miniwebtool.com/tools/amortization-calculator.md) (slug: `amortization-calculator`, category: Finance · Loan Calculators, cost: 1cr) — Calculate loan payment, interest, payoff timing, and savings from extra monthly principal. - [HELOC Calculator](https://api.miniwebtool.com/tools/heloc-calculator.md) (slug: `heloc-calculator`, category: Finance · Loan Calculators, cost: 1cr) — Estimate HELOC draw-period and repayment-period payments, interest cost, and combined loan-to-value. - [Auto Loan Calculator](https://api.miniwebtool.com/tools/auto-loan-calculator.md) (slug: `auto-loan-calculator`, category: Finance · Loans, cost: 2cr) — Calculate auto loan amount, monthly payment, tax, and total interest. - [Business Loan Calculator](https://api.miniwebtool.com/tools/business-loan-calculator.md) (slug: `business-loan-calculator`, category: Finance · Loans, cost: 2cr) — Estimate business loan payments, fees, payoff time, and interest. - [Car Loan Payoff Calculator](https://api.miniwebtool.com/tools/car-loan-payoff-calculator.md) (slug: `car-loan-payoff-calculator`, category: Finance · Loans, cost: 2cr) — Compare standard and accelerated payoff for a car loan. - [Down Payment Calculator](https://api.miniwebtool.com/tools/down-payment-calculator.md) (slug: `down-payment-calculator`, category: Finance · Loans, cost: 2cr) — Estimate mortgage down payment, loan amount, monthly payment, PMI, and comparison scenarios. - [EMI Calculator](https://api.miniwebtool.com/tools/emi-calculator.md) (slug: `emi-calculator`, category: Finance · Loans, cost: 2cr) — Calculate equated monthly installment and total interest for a loan. - [Loan Payoff Calculator](https://api.miniwebtool.com/tools/loan-payoff-calculator.md) (slug: `loan-payoff-calculator`, category: Finance · Loans, cost: 2cr) — Calculate loan payoff months and savings from extra monthly payments. - [Mortgage Calculator](https://api.miniwebtool.com/tools/mortgage-calculator.md) (slug: `mortgage-calculator`, category: Finance · Loans, cost: 5cr) — Monthly payment, total interest, LTV, and optional amortization schedule. - [Personal Loan Calculator](https://api.miniwebtool.com/tools/personal-loan-calculator.md) (slug: `personal-loan-calculator`, category: Finance · Loans, cost: 2cr) — Calculate personal loan payment, payoff time, interest, and extra-payment savings. - [ROAS Calculator](https://api.miniwebtool.com/tools/roas-calculator.md) (slug: `roas-calculator`, category: Finance · Marketing, cost: 2cr) — Calculate return on ad spend, profit, ROI, or target revenue. - [Break-Even Calculator](https://api.miniwebtool.com/tools/break-even-calculator.md) (slug: `break-even-calculator`, category: Finance · Profit, cost: 1cr) — Calculate break-even units, revenue, contribution margin, and target-profit units. - [EBIT Calculator](https://api.miniwebtool.com/tools/ebit-calculator.md) (slug: `ebit-calculator`, category: Finance · Profit, cost: 2cr) — Calculate EBIT and EBIT margin from revenue, expenses, and non-operating income. - [EBITDA Calculator](https://api.miniwebtool.com/tools/ebitda-calculator.md) (slug: `ebitda-calculator`, category: Finance · Profit, cost: 2cr) — Calculate EBITDA using net income or operating income inputs. - [Cash Flow Margin Calculator](https://api.miniwebtool.com/tools/cash-flow-margin-calculator.md) (slug: `cash-flow-margin-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate operating cash flow margin as a percentage of net sales. - [Earnings per Share Calculator](https://api.miniwebtool.com/tools/earnings-per-share-calculator.md) (slug: `earnings-per-share-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate basic, diluted, or weighted earnings per share. - [EBIT Margin Calculator](https://api.miniwebtool.com/tools/ebit-margin-calculator.md) (slug: `ebit-margin-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate EBIT margin and EBIT-to-revenue ratio. - [EBITDA Margin Calculator](https://api.miniwebtool.com/tools/ebitda-margin-calculator.md) (slug: `ebitda-margin-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate EBITDA margin from direct EBITDA or component inputs. - [Gross Profit Margin Calculator](https://api.miniwebtool.com/tools/gross-profit-margin-calculator.md) (slug: `gross-profit-margin-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate gross profit, gross margin, markup, and cost ratio. - [Net Profit Margin Calculator](https://api.miniwebtool.com/tools/net-profit-margin-calculator.md) (slug: `net-profit-margin-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate net profit margin and profit per revenue dollar. - [Operating Margin Calculator](https://api.miniwebtool.com/tools/operating-margin-calculator.md) (slug: `operating-margin-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate operating margin from operating income or detailed operating components. - [Profit Calculator](https://api.miniwebtool.com/tools/profit-calculator.md) (slug: `profit-calculator`, category: Finance · Profitability, cost: 2cr) — Solve profit, margin, markup, revenue, or cost from the known values. - [Profit to Sales Ratio Calculator](https://api.miniwebtool.com/tools/profit-to-sales-ratio-calculator.md) (slug: `profit-to-sales-ratio-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate profit-to-sales ratio and compare it with an industry benchmark. - [Return on Assets Ratio Calculator](https://api.miniwebtool.com/tools/return-on-assets-ratio-calculator.md) (slug: `return-on-assets-ratio-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate ROA with optional DuPont margin and asset-turnover breakdown. - [Return On Equity Calculator](https://api.miniwebtool.com/tools/return-on-equity-calculator.md) (slug: `return-on-equity-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate ROE with optional 3- or 5-component DuPont analysis. - [Return On Sales Calculator](https://api.miniwebtool.com/tools/return-on-sales-calculator.md) (slug: `return-on-sales-calculator`, category: Finance · Profitability, cost: 2cr) — Calculate return on sales, operating cost ratio, and ROS decimal. - [Capitalization Rate Calculator](https://api.miniwebtool.com/tools/capitalization-rate-calculator.md) (slug: `capitalization-rate-calculator`, category: Finance · Real Estate, cost: 2cr) — Solve cap rate, property value, or required NOI for real estate income analysis. - [Gross Rent Multiplier Calculator](https://api.miniwebtool.com/tools/gross-rent-multiplier-calculator.md) (slug: `gross-rent-multiplier-calculator`, category: Finance · Real Estate, cost: 2cr) — Calculate gross rent multiplier and rental yield for a property. - [Home Equity Calculator](https://api.miniwebtool.com/tools/home-equity-calculator.md) (slug: `home-equity-calculator`, category: Finance · Real Estate, cost: 2cr) — Calculate home equity, LTV, CLTV, and optional five-year equity projection. - [Moving Cost Estimator](https://api.miniwebtool.com/tools/moving-cost-estimator.md) (slug: `moving-cost-estimator`, category: Finance · Real Estate, cost: 2cr) — Estimate moving costs from home size, distance, service level, and access factors. - [BRRRR Method Calculator](https://api.miniwebtool.com/tools/brrrr-method-calculator.md) (slug: `brrrr-method-calculator`, category: Finance · Real Estate Calculators, cost: 1cr) — Analyze a BRRRR real estate deal, including all-in cost, refinance proceeds, capital recycled, equity, and cash flow. - [Cash-on-Cash Return Calculator](https://api.miniwebtool.com/tools/cash-on-cash-return-calculator.md) (slug: `cash-on-cash-return-calculator`, category: Finance · Real Estate Calculators, cost: 1cr) — Estimate rental property cash-on-cash return, cap rate, NOI, cash flow, and DSCR. - [House Flipping Profit Calculator](https://api.miniwebtool.com/tools/house-flipping-profit-calculator.md) (slug: `house-flipping-profit-calculator`, category: Finance · Real Estate Calculators, cost: 1cr) — Estimate house flip net profit, ROI, financing effects, and the 70 percent rule threshold. - [Housing Appreciation Calculator](https://api.miniwebtool.com/tools/housing-appreciation-calculator.md) (slug: `housing-appreciation-calculator`, category: Finance · Real Estate Calculators, cost: 1cr) — Calculate total home value change, annualized appreciation, and a future value projection. - [Markup Calculator](https://api.miniwebtool.com/tools/markup-calculator.md) (slug: `markup-calculator`, category: Finance · Retail, cost: 1cr) — Calculate markup percentage, selling price, cost, profit, and margin. - [Dividend Payout Ratio Calculator](https://api.miniwebtool.com/tools/dividend-payout-ratio-calculator.md) (slug: `dividend-payout-ratio-calculator`, category: Finance · Return, cost: 2cr) — Calculate dividend payout ratio and retention ratio from total or per-share inputs. - [Dividend Yield Calculator](https://api.miniwebtool.com/tools/dividend-yield-calculator.md) (slug: `dividend-yield-calculator`, category: Finance · Return, cost: 2cr) — Calculate dividend yield, per-payment dividend, and optional annual income. - [ROI Calculator](https://api.miniwebtool.com/tools/roi-calculator.md) (slug: `roi-calculator`, category: Finance · Return, cost: 2cr) — Calculate ROI, annualized ROI, CAGR, and investment term from fixed dates. - [Hourly to Salary Calculator](https://api.miniwebtool.com/tools/hourly-to-salary-calculator.md) (slug: `hourly-to-salary-calculator`, category: Finance · Salary, cost: 2cr) — Convert an hourly wage to weekly, monthly, and annual salary. - [Hourly Wage Calculator](https://api.miniwebtool.com/tools/hourly-wage-calculator.md) (slug: `hourly-wage-calculator`, category: Finance · Salary, cost: 2cr) — Convert annual salary to equivalent hourly wage. - [Salary Conversion Calculator](https://api.miniwebtool.com/tools/salary-conversion-calculator.md) (slug: `salary-conversion-calculator`, category: Finance · Salary, cost: 2cr) — Convert wage amounts across hourly, daily, weekly, monthly, and annual pay periods. - [Weekly Wage Calculator](https://api.miniwebtool.com/tools/weekly-wage-calculator.md) (slug: `weekly-wage-calculator`, category: Finance · Salary, cost: 2cr) — Convert annual salary to weekly wage. - [Commission Calculator](https://api.miniwebtool.com/tools/commission-calculator.md) (slug: `commission-calculator`, category: Finance · Sales, cost: 2cr) — Calculate flat, tiered, or bonus-based sales commission. - [Compound Savings Calculator](https://api.miniwebtool.com/tools/compound-savings-calculator.md) (slug: `compound-savings-calculator`, category: Finance · Savings, cost: 1cr) — Project savings growth with compound interest and regular contributions. - [Future Value Calculator](https://api.miniwebtool.com/tools/future-value-calculator.md) (slug: `future-value-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate future value from a lump sum plus optional recurring contributions. - [Future Value Factor Calculator](https://api.miniwebtool.com/tools/future-value-factor-calculator.md) (slug: `future-value-factor-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate the future value factor for a rate and number of periods. - [Future Value of Annuity Calculator](https://api.miniwebtool.com/tools/future-value-of-annuity-calculator.md) (slug: `future-value-of-annuity-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate future value for ordinary annuities and annuities due. - [Future Value of Annuity Due Calculator](https://api.miniwebtool.com/tools/future-value-of-annuity-due-calculator.md) (slug: `future-value-of-annuity-due-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate future value of an annuity due and compare it with an ordinary annuity. - [Future Value of Growing Annuity Calculator](https://api.miniwebtool.com/tools/future-value-of-growing-annuity-calculator.md) (slug: `future-value-of-growing-annuity-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate future value for payments that grow each period. - [Future Value of Lump Sum Calculator](https://api.miniwebtool.com/tools/future-value-of-lump-sum-calculator.md) (slug: `future-value-of-lump-sum-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate compound future value for a single lump-sum investment. - [FVIFA Calculator](https://api.miniwebtool.com/tools/fvifa-calculator.md) (slug: `fvifa-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate the future value interest factor of an annuity. - [Present Value of Annuity Calculator](https://api.miniwebtool.com/tools/present-value-of-annuity-calculator.md) (slug: `present-value-of-annuity-calculator`, category: Finance · Tvm, cost: 2cr) — Calculate present value for ordinary annuities and annuities due. - [Present Value of Lump Sum Calculator](https://api.miniwebtool.com/tools/present-value-of-lump-sum-calculator.md) (slug: `present-value-of-lump-sum-calculator`, category: Finance · Tvm, cost: 2cr) — Discount a future lump sum back to present value. - [VAT Calculator](https://api.miniwebtool.com/tools/vat-calculator.md) (slug: `vat-calculator`, category: Finance · Tax, cost: 2cr) — Add, remove, or extract VAT from an amount using a preset or custom rate. - [Book Value per Share Calculator](https://api.miniwebtool.com/tools/book-value-per-share-calculator.md) (slug: `book-value-per-share-calculator`, category: Finance · Valuation, cost: 2cr) — Calculate book value per share, common equity, and optional price-to-book ratio. - [P/E Ratio Calculator](https://api.miniwebtool.com/tools/p-e-ratio-calculator.md) (slug: `p-e-ratio-calculator`, category: Finance · Valuation, cost: 2cr) — Calculate price-to-earnings ratio, earnings yield, and sector benchmark premium. - [Price to Book Ratio Calculator](https://api.miniwebtool.com/tools/price-to-book-ratio-calculator.md) (slug: `price-to-book-ratio-calculator`, category: Finance · Valuation, cost: 2cr) — Calculate price-to-book ratio and compare it to industry benchmark ranges. - [BLAKE2b Hash Generator](https://api.miniwebtool.com/tools/blake2b-hash-generator.md) (slug: `blake2b-hash-generator`, category: Hash · Digest, cost: 1cr) — Generate a BLAKE2b digest with 256, 384, or 512-bit output. - [MD5 Hash Generator](https://api.miniwebtool.com/tools/md5-hash-generator.md) (slug: `md5-hash-generator`, category: Hash · Digest, cost: 1cr) — Generate an MD5 hex digest for checksum and legacy compatibility. - [SHA-256 Hash Generator](https://api.miniwebtool.com/tools/sha256-hash-generator.md) (slug: `sha256-hash-generator`, category: Hash · Digest, cost: 1cr) — Generate a SHA-256 hex digest of a UTF-8 string. - [SHA3-512 Hash Generator](https://api.miniwebtool.com/tools/sha3-512-hash-generator.md) (slug: `sha3-512-hash-generator`, category: Hash · Digest, cost: 1cr) — Generate a SHA3-512 hex digest of a UTF-8 string. - [SHA-384 Hash Generator](https://api.miniwebtool.com/tools/sha384-hash-generator.md) (slug: `sha384-hash-generator`, category: Hash · Digest, cost: 1cr) — Generate a SHA-384 hex digest of a UTF-8 string. - [SHA-512 Hash Generator](https://api.miniwebtool.com/tools/sha512-hash-generator.md) (slug: `sha512-hash-generator`, category: Hash · Digest, cost: 1cr) — Generate a SHA-512 hex digest of a UTF-8 string. - [Yarn Calculator](https://api.miniwebtool.com/tools/yarn-calculator.md) (slug: `yarn-calculator`, category: Lifestyle · Crafts, cost: 1cr) — Estimate yarn yards, meters, grams, and skeins for common knitting/crochet projects. - [Bench Press Calculator](https://api.miniwebtool.com/tools/bench-press-calculator.md) (slug: `bench-press-calculator`, category: Lifestyle · Fitness, cost: 1cr) — Estimate bench press one-rep max, formula comparisons, and training zones. - [BMR Calculator](https://api.miniwebtool.com/tools/bmr-calculator.md) (slug: `bmr-calculator`, category: Lifestyle · Fitness, cost: 1cr) — Calculate BMR, RMR estimate, TDEE, macro estimates, and activity-level calorie needs. - [BAC Calculator](https://api.miniwebtool.com/tools/bac-calculator.md) (slug: `bac-calculator`, category: Lifestyle · Health, cost: 1cr) — Estimate blood alcohol content using standard-drink counts and the Widmark formula. - [Biological Age Calculator](https://api.miniwebtool.com/tools/biological-age-calculator.md) (slug: `biological-age-calculator`, category: Lifestyle · Health, cost: 1cr) — Estimate biological age from lifestyle and health-factor adjustments. - [Angel Number Calculator](https://api.miniwebtool.com/tools/angel-number-calculator.md) (slug: `angel-number-calculator`, category: Lifestyle · Numerology, cost: 1cr) — Find recurring angel-number interpretations or derive one from a birth date. - [CTR Calculator](https://api.miniwebtool.com/tools/ctr-calculator.md) (slug: `ctr-calculator`, category: Marketing · Advertising, cost: 1cr) — Calculate click-through rate, required clicks for a target CTR, or bulk campaign CTR. - [Complementary Error Function Calculator](https://api.miniwebtool.com/tools/complementary-error-function-calculator.md) (slug: `complementary-error-function-calculator`, category: Math · Advanced, cost: 1cr) — Calculate erf(x), erfc(x), and related error-function values. - [Exponential Decay Calculator](https://api.miniwebtool.com/tools/exponential-decay-calculator.md) (slug: `exponential-decay-calculator`, category: Math · Advanced, cost: 1cr) — Solve continuous exponential decay equations for final amount, initial amount, rate, or time. - [Exponential Growth Calculator](https://api.miniwebtool.com/tools/exponential-growth-calculator.md) (slug: `exponential-growth-calculator`, category: Math · Advanced, cost: 1cr) — Solve continuous exponential growth equations for final amount, initial amount, rate, or time. - [Antilog Calculator](https://api.miniwebtool.com/tools/antilog-calculator.md) (slug: `antilog-calculator`, category: Math · Advanced Math, cost: 1cr) — Calculate an antilogarithm as base raised to an exponent. - [Absolute Value Equation Solver](https://api.miniwebtool.com/tools/absolute-value-equation-solver.md) (slug: `absolute-value-equation-solver`, category: Math · Algebra, cost: 1cr) — Solve equations of the form |a*x + b| = c. - [Absolute Value Inequality Solver](https://api.miniwebtool.com/tools/absolute-value-inequality-solver.md) (slug: `absolute-value-inequality-solver`, category: Math · Algebra, cost: 1cr) — Solve inequalities of the form |a*x + b| compared with c. - [Completing the Square Calculator](https://api.miniwebtool.com/tools/completing-the-square-calculator.md) (slug: `completing-the-square-calculator`, category: Math · Algebra, cost: 1cr) — Convert a quadratic to vertex form and solve by completing the square. - [Cubic Equation Solver](https://api.miniwebtool.com/tools/cubic-equation-solver.md) (slug: `cubic-equation-solver`, category: Math · Algebra, cost: 1cr) — Solve ax^3 + bx^2 + cx + d = 0 and return all real or complex roots. - [Point Slope Form Calculator](https://api.miniwebtool.com/tools/point-slope-form-calculator.md) (slug: `point-slope-form-calculator`, category: Math · Algebra, cost: 1cr) — Build point-slope, slope-intercept, and standard-form line equations. - [Slope Intercept Form Calculator](https://api.miniwebtool.com/tools/slope-intercept-form-calculator.md) (slug: `slope-intercept-form-calculator`, category: Math · Algebra, cost: 1cr) — Build slope-intercept and standard-form line equations from m and b. - [Square Root Calculator](https://api.miniwebtool.com/tools/square-root-calculator.md) (slug: `square-root-calculator`, category: Math · Algebra, cost: 1cr) — Calculate the principal and negative square roots of a non-negative number. - [X and Y Intercept Calculator](https://api.miniwebtool.com/tools/x-y-intercept-calculator.md) (slug: `x-y-intercept-calculator`, category: Math · Algebra, cost: 1cr) — Find x- and y-intercepts for a linear equation ax + by + c = 0. - [Radian to Degree Converter](https://api.miniwebtool.com/tools/radian-to-degree-converter.md) (slug: `radian-to-degree-converter`, category: Math · Angles, cost: 1cr) — Convert radians, fractions, or pi expressions to degrees. - [Acreage Calculator](https://api.miniwebtool.com/tools/acreage-calculator.md) (slug: `acreage-calculator`, category: Math · Area, cost: 1cr) — Calculate land acreage from rectangle, triangle, or circle dimensions. - [Hectares to Acres Converter](https://api.miniwebtool.com/tools/hectares-to-acres-converter.md) (slug: `hectares-to-acres-converter`, category: Math · Area, cost: 1cr) — Convert hectares to acres and related land-area units. - [Square Feet to Acres Converter](https://api.miniwebtool.com/tools/square-feet-to-acres-converter.md) (slug: `square-feet-to-acres-converter`, category: Math · Area, cost: 1cr) — Convert square feet to acres and related land-area units. - [Square Footage Calculator](https://api.miniwebtool.com/tools/square-footage-calculator.md) (slug: `square-footage-calculator`, category: Math · Area, cost: 1cr) — Calculate square footage for common room, lot, and curved shapes. - [Square Meters to Acres Converter](https://api.miniwebtool.com/tools/square-meters-to-acres-converter.md) (slug: `square-meters-to-acres-converter`, category: Math · Area, cost: 1cr) — Convert square meters to acres and related land-area units. - [Square Miles to Acres Converter](https://api.miniwebtool.com/tools/square-miles-to-acres-converter.md) (slug: `square-miles-to-acres-converter`, category: Math · Area, cost: 1cr) — Convert square miles to acres and related land-area units. - [Absolute Value Calculator](https://api.miniwebtool.com/tools/absolute-value-calculator.md) (slug: `absolute-value-calculator`, category: Math · Basic Math, cost: 1cr) — Calculate the absolute value of a real or complex number. - [Cube and Cube Root Calculator](https://api.miniwebtool.com/tools/cube-and-cube-root-calculator.md) (slug: `cube-and-cube-root-calculator`, category: Math · Basic Math, cost: 1cr) — Calculate a number's cube and cube root. - [Cube Root Calculator](https://api.miniwebtool.com/tools/cube-root-calculator.md) (slug: `cube-root-calculator`, category: Math · Basic Math, cost: 1cr) — Calculate the real cube root of a finite number. - [Even or Odd Number Checker](https://api.miniwebtool.com/tools/even-or-odd-number-checker.md) (slug: `even-or-odd-number-checker`, category: Math · Basic Math, cost: 1cr) — Check whether one or more integers are even or odd. - [Curvature Calculator](https://api.miniwebtool.com/tools/curvature-calculator.md) (slug: `curvature-calculator`, category: Math · Calculus, cost: 1cr) — Calculate curvature and radius of curvature for a quadratic function. - [Bar Graph Maker](https://api.miniwebtool.com/tools/bar-graph-maker.md) (slug: `bar-graph-maker`, category: Math · Charts, cost: 1cr) — Prepare normalized bar-chart data from labels and numeric values. - [Binomial Coefficient Calculator](https://api.miniwebtool.com/tools/binomial-coefficient-calculator.md) (slug: `binomial-coefficient-calculator`, category: Math · Combinatorics, cost: 1cr) — Calculate C(n, k), the number of combinations choosing k items from n. - [Combination Calculator](https://api.miniwebtool.com/tools/combination-calculator.md) (slug: `combination-calculator`, category: Math · Combinatorics, cost: 1cr) — Calculate combinations C(n, k). - [Permutation Calculator](https://api.miniwebtool.com/tools/permutation-calculator.md) (slug: `permutation-calculator`, category: Math · Combinatorics, cost: 1cr) — Calculate P(n,r), where order matters and repetition is not allowed. - [Permutations with Repetition Calculator](https://api.miniwebtool.com/tools/permutations-with-repetition-calculator.md) (slug: `permutations-with-repetition-calculator`, category: Math · Combinatorics, cost: 1cr) — Calculate n^r ordered arrangements where items can repeat. - [Complex Numbers Calculator](https://api.miniwebtool.com/tools/complex-numbers-calculator.md) (slug: `complex-numbers-calculator`, category: Math · Complex Numbers, cost: 1cr) — Add, subtract, multiply, or divide two complex numbers. - [Hyperbola Calculator](https://api.miniwebtool.com/tools/hyperbola-calculator.md) (slug: `hyperbola-calculator`, category: Math · Conics, cost: 1cr) — Calculate standard-form hyperbola vertices, foci, eccentricity, and asymptotes. - [Flooring Calculator](https://api.miniwebtool.com/tools/flooring-calculator.md) (slug: `flooring-calculator`, category: Math · Construction, cost: 1cr) — Estimate flooring material units, waste allowance, and optional cost. - [Insulation Calculator](https://api.miniwebtool.com/tools/insulation-calculator.md) (slug: `insulation-calculator`, category: Math · Construction, cost: 1cr) — Estimate insulation R-value target, thickness, material quantity, and cost range. - [Butter to Oil Converter](https://api.miniwebtool.com/tools/butter-to-oil-converter.md) (slug: `butter-to-oil-converter`, category: Math · Cooking, cost: 1cr) — Convert butter quantities to practical oil equivalents for baking. - [Polar to Cartesian Converter](https://api.miniwebtool.com/tools/polar-to-cartesian-converter.md) (slug: `polar-to-cartesian-converter`, category: Math · Coordinate Geometry, cost: 1cr) — Convert polar coordinates to Cartesian x and y coordinates. - [Final Grade Calculator](https://api.miniwebtool.com/tools/final-grade-calculator.md) (slug: `final-grade-calculator`, category: Math · Education, cost: 1cr) — Calculate the final exam score needed to reach a target course grade. - [LED Resistor Calculator](https://api.miniwebtool.com/tools/led-resistor-calculator.md) (slug: `led-resistor-calculator`, category: Math · Electronics, cost: 1cr) — Calculate LED current-limiting resistor values and power ratings. - [Half Life Calculator](https://api.miniwebtool.com/tools/half-life-calculator.md) (slug: `half-life-calculator`, category: Math · Exponents, cost: 1cr) — Solve exponential decay for remaining amount, initial amount, elapsed time, or half-life. - [Comparing Fractions Calculator](https://api.miniwebtool.com/tools/comparing-fractions-calculator.md) (slug: `comparing-fractions-calculator`, category: Math · Fractions, cost: 1cr) — Compare two fractions or mixed numbers using a common denominator. - [Decimal to Fraction Calculator](https://api.miniwebtool.com/tools/decimal-to-fraction-calculator.md) (slug: `decimal-to-fraction-calculator`, category: Math · Fractions, cost: 1cr) — Convert a decimal or parenthesized repeating decimal to a fraction. - [Equivalent Fractions Calculator](https://api.miniwebtool.com/tools/equivalent-fractions-calculator.md) (slug: `equivalent-fractions-calculator`, category: Math · Fractions, cost: 1cr) — Generate equivalent fractions or check whether two fractions are equivalent. - [Fraction Simplifier](https://api.miniwebtool.com/tools/fraction-simplifier.md) (slug: `fraction-simplifier`, category: Math · Fractions, cost: 1cr) — Reduce a fraction to lowest terms and return GCF, mixed number, decimal, percentage, and equivalents. - [Fraction to Decimal Calculator](https://api.miniwebtool.com/tools/fraction-to-decimal-calculator.md) (slug: `fraction-to-decimal-calculator`, category: Math · Fractions, cost: 1cr) — Convert proper, improper, or mixed fractions to decimals and detect repeating decimal patterns. - [Fraction to Mixed Number Converter](https://api.miniwebtool.com/tools/fraction-to-mixed-number-converter.md) (slug: `fraction-to-mixed-number-converter`, category: Math · Fractions, cost: 1cr) — Convert an improper fraction to a simplified mixed number. - [Fraction to Percent Converter](https://api.miniwebtool.com/tools/fraction-to-percent-converter.md) (slug: `fraction-to-percent-converter`, category: Math · Fractions, cost: 1cr) — Convert proper, improper, or mixed fractions to percentages with configurable decimal places. - [Mixed Number to Fraction Converter](https://api.miniwebtool.com/tools/mixed-number-to-fraction-converter.md) (slug: `mixed-number-to-fraction-converter`, category: Math · Fractions, cost: 1cr) — Convert a mixed number to an improper fraction and simplified form. - [Reduce Fractions Calculator](https://api.miniwebtool.com/tools/reduce-fractions-calculator.md) (slug: `reduce-fractions-calculator`, category: Math · Fractions, cost: 1cr) — Reduce a proper, improper, or mixed fraction to lowest terms. - [Hyperbolic Functions Calculator](https://api.miniwebtool.com/tools/hyperbolic-functions-calculator.md) (slug: `hyperbolic-functions-calculator`, category: Math · Functions, cost: 1cr) — Calculate sinh, cosh, tanh and reciprocal hyperbolic functions. - [DPS Calculator](https://api.miniwebtool.com/tools/dps-calculator.md) (slug: `dps-calculator`, category: Math · Games, cost: 1cr) — Calculate raw, sustained, critical-hit, and headshot damage per second. - [3D Distance Calculator](https://api.miniwebtool.com/tools/3d-distance-calculator.md) (slug: `3d-distance-calculator`, category: Math · Geometry, cost: 1cr) — Calculate 3D Euclidean distance, midpoint, direction cosines, and related distances. - [Angle Bisector Calculator](https://api.miniwebtool.com/tools/angle-bisector-calculator.md) (slug: `angle-bisector-calculator`, category: Math · Geometry, cost: 1cr) — Calculate triangle angle bisectors, angles, area, and inradius from side lengths. - [Arc Length Calculator](https://api.miniwebtool.com/tools/arc-length-calculator.md) (slug: `arc-length-calculator`, category: Math · Geometry, cost: 1cr) — Solve arc length, radius, or central angle for a circle sector. - [Area of a Circle Calculator](https://api.miniwebtool.com/tools/area-of-a-circle-calculator.md) (slug: `area-of-a-circle-calculator`, category: Math · Geometry, cost: 1cr) — Calculate circle radius, diameter, circumference, and area from one value. - [Area of a Parallelogram Calculator](https://api.miniwebtool.com/tools/area-of-a-parallelogram-calculator.md) (slug: `area-of-a-parallelogram-calculator`, category: Math · Geometry, cost: 1cr) — Find parallelogram area from base-height, sides-angle, or diagonals-angle inputs. - [Area of a Sector Calculator](https://api.miniwebtool.com/tools/area-of-a-sector-calculator.md) (slug: `area-of-a-sector-calculator`, category: Math · Geometry, cost: 1cr) — Calculate sector area, arc length, perimeter, chord, and segment area. - [Area of a Trapezoid Calculator](https://api.miniwebtool.com/tools/area-of-a-trapezoid-calculator.md) (slug: `area-of-a-trapezoid-calculator`, category: Math · Geometry, cost: 1cr) — Calculate trapezoid area from two parallel bases and height. - [Area of an Ellipse Calculator](https://api.miniwebtool.com/tools/area-of-an-ellipse-calculator.md) (slug: `area-of-an-ellipse-calculator`, category: Math · Geometry, cost: 1cr) — Calculate ellipse area, Ramanujan perimeter, foci, and eccentricity. - [Area of Equilateral Triangle Calculator](https://api.miniwebtool.com/tools/area-of-equilateral-triangle-calculator.md) (slug: `area-of-equilateral-triangle-calculator`, category: Math · Geometry, cost: 1cr) — Calculate equilateral-triangle side, area, height, perimeter, and radii. - [Cartesian to Polar Coordinates Converter](https://api.miniwebtool.com/tools/cartesian-to-polar-converter.md) (slug: `cartesian-to-polar-converter`, category: Math · Geometry, cost: 1cr) — Convert Cartesian x-y coordinates to polar radius and angle. - [Circle Calculator](https://api.miniwebtool.com/tools/circle-calculator.md) (slug: `circle-calculator`, category: Math · Geometry, cost: 1cr) — Calculate circle radius, diameter, circumference, area, and optional arc/sector values. - [Circumscribed Circle Circumcircle Calculator](https://api.miniwebtool.com/tools/circumscribed-circle-circumcircle-calculator.md) (slug: `circumscribed-circle-circumcircle-calculator`, category: Math · Geometry, cost: 1cr) — Calculate the circumcircle of a triangle from side lengths or coordinates. - [Cone Flat Pattern Template Generator](https://api.miniwebtool.com/tools/cone-flat-pattern-template-generator.md) (slug: `cone-flat-pattern-template-generator`, category: Math · Geometry, cost: 1cr) — Calculate unrolled cone or frustum flat-pattern dimensions. - [Conic Section Identifier](https://api.miniwebtool.com/tools/conic-section-identifier.md) (slug: `conic-section-identifier`, category: Math · Geometry, cost: 1cr) — Classify a general second-degree equation as a conic section. - [Coordinate Geometry Distance Calculator](https://api.miniwebtool.com/tools/coordinate-geometry-distance-calculator.md) (slug: `coordinate-geometry-distance-calculator`, category: Math · Geometry, cost: 1cr) — Calculate distance, midpoint, slope, and line equations between two points. - [Distance Between Two Points Calculator](https://api.miniwebtool.com/tools/distance-between-two-points-calculator.md) (slug: `distance-between-two-points-calculator`, category: Math · Geometry, cost: 1cr) — Calculate 2D point distance, midpoint, slope, and line equation. - [Ellipse Circumference Calculator](https://api.miniwebtool.com/tools/ellipse-circumference-calculator.md) (slug: `ellipse-circumference-calculator`, category: Math · Geometry, cost: 1cr) — Calculate ellipse circumference with several common approximations. - [Euler Characteristic Calculator](https://api.miniwebtool.com/tools/euler-characteristic-calculator.md) (slug: `euler-characteristic-calculator`, category: Math · Geometry, cost: 1cr) — Calculate Euler characteristic V - E + F and classify common surfaces. - [Frustum Calculator](https://api.miniwebtool.com/tools/frustum-calculator.md) (slug: `frustum-calculator`, category: Math · Geometry, cost: 1cr) — Calculate volume and surface area for a conical frustum. - [Golden Ratio Calculator](https://api.miniwebtool.com/tools/golden-ratio-calculator.md) (slug: `golden-ratio-calculator`, category: Math · Geometry, cost: 1cr) — Calculate golden-ratio segments from total, larger, or smaller segment. - [Golden Rectangle Calculator](https://api.miniwebtool.com/tools/golden-rectangle-calculator.md) (slug: `golden-rectangle-calculator`, category: Math · Geometry, cost: 1cr) — Calculate golden rectangle dimensions, area, perimeter, and aspect ratio. - [Golden Section Calculator](https://api.miniwebtool.com/tools/golden-section-calculator.md) (slug: `golden-section-calculator`, category: Math · Geometry, cost: 1cr) — Find the golden-section points within an interval. - [Great Circle Distance Calculator](https://api.miniwebtool.com/tools/great-circle-distance-calculator.md) (slug: `great-circle-distance-calculator`, category: Math · Geometry, cost: 1cr) — Calculate great-circle distance, bearing, and midpoint between two coordinates. - [Heron's Formula Calculator](https://api.miniwebtool.com/tools/heron-s-formula-calculator.md) (slug: `heron-s-formula-calculator`, category: Math · Geometry, cost: 1cr) — Calculate triangle area from three side lengths using Heron's formula. - [Hypotenuse Calculator](https://api.miniwebtool.com/tools/hypotenuse-calculator.md) (slug: `hypotenuse-calculator`, category: Math · Geometry, cost: 1cr) — Calculate the hypotenuse and basic right-triangle measures from two legs. - [Midpoint Calculator](https://api.miniwebtool.com/tools/midpoint-calculator.md) (slug: `midpoint-calculator`, category: Math · Geometry, cost: 1cr) — Find the midpoint, distance, slope, and angle between two points. - [Point to Plane Distance Calculator](https://api.miniwebtool.com/tools/point-to-plane-distance-calculator.md) (slug: `point-to-plane-distance-calculator`, category: Math · Geometry, cost: 1cr) — Calculate the distance from a 3D point to a plane Ax + By + Cz + D = 0. - [Polygon Diagonals Calculator](https://api.miniwebtool.com/tools/polygon-diagonals-calculator.md) (slug: `polygon-diagonals-calculator`, category: Math · Geometry, cost: 1cr) — Calculate the number of diagonals and angle facts for a polygon. - [Pythagorean Theorem Calculator](https://api.miniwebtool.com/tools/pythagorean-theorem-calculator.md) (slug: `pythagorean-theorem-calculator`, category: Math · Geometry, cost: 1cr) — Find a missing right-triangle side and calculate area, perimeter, and angles. - [Rectangle Calculator](https://api.miniwebtool.com/tools/rectangle-calculator.md) (slug: `rectangle-calculator`, category: Math · Geometry, cost: 1cr) — Calculate rectangle area, perimeter, diagonal, radii, and aspect ratio from two known values. - [Regular Polygon Calculator](https://api.miniwebtool.com/tools/regular-polygon-calculator.md) (slug: `regular-polygon-calculator`, category: Math · Geometry, cost: 1cr) — Calculate regular polygon area, perimeter, apothem, circumradius, angles, and diagonal count. - [Slope Calculator](https://api.miniwebtool.com/tools/slope-calculator.md) (slug: `slope-calculator`, category: Math · Geometry, cost: 1cr) — Calculate slope, angle, intercepts, and line equation from two points. - [Square Calculator](https://api.miniwebtool.com/tools/square-calculator.md) (slug: `square-calculator`, category: Math · Geometry, cost: 1cr) — Calculate square side length, area, perimeter, diagonal, inradius, and circumradius from one known value. - [Torus Calculator](https://api.miniwebtool.com/tools/torus-calculator.md) (slug: `torus-calculator`, category: Math · Geometry Calculators, cost: 1cr) — Calculate torus volume, surface area, and key radii. - [Aquarium Substrate Calculator](https://api.miniwebtool.com/tools/aquarium-substrate-calculator.md) (slug: `aquarium-substrate-calculator`, category: Math · Home, cost: 1cr) — Estimate aquarium substrate volume, weight, and bag counts. - [Feet and Inches to Cm Converter](https://api.miniwebtool.com/tools/feet-and-inches-to-cm-converter.md) (slug: `feet-and-inches-to-cm-converter`, category: Math · Length, cost: 1cr) — Convert feet and inches to total inches, centimeters, meters, and height comparison percentages. - [Christmas Tree Calculator](https://api.miniwebtool.com/tools/christmas-tree-calculator.md) (slug: `christmas-tree-calculator`, category: Math · Lifestyle, cost: 1cr) — Check tree height fit and estimate lights, ornaments, and garland. - [Angle Between Vectors Calculator](https://api.miniwebtool.com/tools/angle-between-vectors-calculator.md) (slug: `angle-between-vectors-calculator`, category: Math · Linear Algebra, cost: 1cr) — Calculate the angle between two 2D or 3D vectors. - [Characteristic Polynomial Calculator](https://api.miniwebtool.com/tools/characteristic-polynomial-calculator.md) (slug: `characteristic-polynomial-calculator`, category: Math · Linear Algebra, cost: 1cr) — Calculate characteristic polynomial coefficients for a square matrix. - [Cholesky Decomposition Calculator](https://api.miniwebtool.com/tools/cholesky-decomposition-calculator.md) (slug: `cholesky-decomposition-calculator`, category: Math · Linear Algebra, cost: 1cr) — Decompose a symmetric positive-definite matrix into A = L L^T. - [Column Space Calculator](https://api.miniwebtool.com/tools/column-space-calculator.md) (slug: `column-space-calculator`, category: Math · Linear Algebra, cost: 1cr) — Find matrix pivot columns, rank, nullity, RREF, and a column-space basis. - [Cramer's Rule Calculator](https://api.miniwebtool.com/tools/cramer-s-rule-calculator.md) (slug: `cramer-s-rule-calculator`, category: Math · Linear Algebra, cost: 1cr) — Solve 2x2 or 3x3 linear systems with Cramer's rule. - [Cross Product Calculator](https://api.miniwebtool.com/tools/cross-product-calculator.md) (slug: `cross-product-calculator`, category: Math · Linear Algebra, cost: 1cr) — Calculate the 3D cross product, magnitude, areas, and angle. - [Determinant Calculator](https://api.miniwebtool.com/tools/determinant-calculator.md) (slug: `determinant-calculator`, category: Math · Linear Algebra, cost: 1cr) — Calculate the determinant, trace, rank, and invertibility of a square matrix. - [Dot Product Calculator](https://api.miniwebtool.com/tools/dot-product-calculator.md) (slug: `dot-product-calculator`, category: Math · Linear Algebra, cost: 1cr) — Calculate the dot product, magnitudes, angle, and vector projection. - [Unit Vector Calculator](https://api.miniwebtool.com/tools/unit-vector-calculator.md) (slug: `unit-vector-calculator`, category: Math · Linear Algebra, cost: 1cr) — Normalize a vector and return its unit vector. - [Vector Magnitude Calculator](https://api.miniwebtool.com/tools/vector-magnitude-calculator.md) (slug: `vector-magnitude-calculator`, category: Math · Linear Algebra, cost: 1cr) — Calculate the Euclidean magnitude and unit vector for any vector. - [Vector Projection Calculator](https://api.miniwebtool.com/tools/vector-projection-calculator.md) (slug: `vector-projection-calculator`, category: Math · Linear Algebra, cost: 1cr) — Project one vector onto another and compute the orthogonal component. - [Log Base 10 Calculator](https://api.miniwebtool.com/tools/log-base-10-calculator.md) (slug: `log-base-10-calculator`, category: Math · Logarithms, cost: 1cr) — Calculate common logarithms with bounds and an antilog check. - [Log Base 2 Calculator](https://api.miniwebtool.com/tools/log-base-2-calculator.md) (slug: `log-base-2-calculator`, category: Math · Logarithms, cost: 1cr) — Calculate binary logarithms and detect exact powers of two. - [Base Converter](https://api.miniwebtool.com/tools/base-converter.md) (slug: `base-converter`, category: Math · Number Systems, cost: 1cr) — Convert integers between bases 2 through 36. - [Base-N Calculator](https://api.miniwebtool.com/tools/base-n-calculator.md) (slug: `base-n-calculator`, category: Math · Number Systems, cost: 1cr) — Convert an integer from any base 2 through 36 to every other base. - [BCD to Binary Converter](https://api.miniwebtool.com/tools/bcd-to-binary-converter.md) (slug: `bcd-to-binary-converter`, category: Math · Number Systems, cost: 1cr) — Convert 8421 BCD nibbles to decimal and binary. - [BCD to Decimal Converter](https://api.miniwebtool.com/tools/bcd-to-decimal-converter.md) (slug: `bcd-to-decimal-converter`, category: Math · Number Systems, cost: 1cr) — Convert binary-coded decimal nibbles to a decimal integer. - [BCD to Hex Converter](https://api.miniwebtool.com/tools/bcd-to-hex-converter.md) (slug: `bcd-to-hex-converter`, category: Math · Number Systems, cost: 1cr) — Convert BCD to hexadecimal or hexadecimal to BCD. - [Binary Calculator](https://api.miniwebtool.com/tools/binary-calculator.md) (slug: `binary-calculator`, category: Math · Number Systems, cost: 1cr) — Run binary arithmetic and bitwise operations. - [Binary to BCD Converter](https://api.miniwebtool.com/tools/binary-to-bcd-converter.md) (slug: `binary-to-bcd-converter`, category: Math · Number Systems, cost: 1cr) — Convert an integer binary value to binary-coded decimal. - [Binary to Decimal Converter](https://api.miniwebtool.com/tools/binary-to-decimal-converter.md) (slug: `binary-to-decimal-converter`, category: Math · Number Systems, cost: 1cr) — Convert a binary number to decimal, hexadecimal, and octal. - [Binary to Gray Code Converter](https://api.miniwebtool.com/tools/binary-to-gray-code-converter.md) (slug: `binary-to-gray-code-converter`, category: Math · Number Systems, cost: 1cr) — Convert an integer binary value to Gray code. - [Binary to Hex Converter](https://api.miniwebtool.com/tools/binary-to-hex-converter.md) (slug: `binary-to-hex-converter`, category: Math · Number Systems, cost: 1cr) — Convert a binary number to hexadecimal with nibble grouping. - [Binary to Octal Converter](https://api.miniwebtool.com/tools/binary-to-octal-converter.md) (slug: `binary-to-octal-converter`, category: Math · Number Systems, cost: 1cr) — Convert a binary number to octal using 3-bit grouping. - [Decimal to Binary Converter](https://api.miniwebtool.com/tools/decimal-to-binary-converter.md) (slug: `decimal-to-binary-converter`, category: Math · Number Systems, cost: 1cr) — Convert a decimal integer to binary with grouped bits and division steps. - [Decimal to Hex Converter](https://api.miniwebtool.com/tools/decimal-to-hex-converter.md) (slug: `decimal-to-hex-converter`, category: Math · Number Systems, cost: 1cr) — Convert a decimal integer to hexadecimal with conversion steps. - [Decimal to Octal Converter](https://api.miniwebtool.com/tools/decimal-to-octal-converter.md) (slug: `decimal-to-octal-converter`, category: Math · Number Systems, cost: 1cr) — Convert a base-10 integer to octal with division steps. - [Decimal to Scientific Notation Converter](https://api.miniwebtool.com/tools/decimal-to-scientific-notation-converter.md) (slug: `decimal-to-scientific-notation-converter`, category: Math · Number Systems, cost: 1cr) — Convert decimal numbers to scientific, E, and engineering notation. - [Gray Code to Binary Converter](https://api.miniwebtool.com/tools/gray-code-to-binary-converter.md) (slug: `gray-code-to-binary-converter`, category: Math · Number Systems, cost: 1cr) — Convert Gray code to ordinary binary with XOR steps. - [Hex to BCD Converter](https://api.miniwebtool.com/tools/hex-to-bcd-converter.md) (slug: `hex-to-bcd-converter`, category: Math · Number Systems, cost: 1cr) — Convert a hexadecimal integer to binary-coded decimal. - [Hex to Binary Converter](https://api.miniwebtool.com/tools/hex-to-binary-converter.md) (slug: `hex-to-binary-converter`, category: Math · Number Systems, cost: 1cr) — Convert a hexadecimal integer to binary. - [Hex to Decimal Converter](https://api.miniwebtool.com/tools/hex-to-decimal-converter.md) (slug: `hex-to-decimal-converter`, category: Math · Number Systems, cost: 1cr) — Convert a hexadecimal integer to decimal with digit breakdown. - [Hex to Octal Converter](https://api.miniwebtool.com/tools/hex-to-octal-converter.md) (slug: `hex-to-octal-converter`, category: Math · Number Systems, cost: 1cr) — Convert a hexadecimal integer to octal through binary grouping. - [Octal to Binary Converter](https://api.miniwebtool.com/tools/octal-to-binary-converter.md) (slug: `octal-to-binary-converter`, category: Math · Number Systems, cost: 1cr) — Convert an octal integer to binary with per-digit mapping. - [Octal to Decimal Converter](https://api.miniwebtool.com/tools/octal-to-decimal-converter.md) (slug: `octal-to-decimal-converter`, category: Math · Number Systems, cost: 1cr) — Convert an octal integer to decimal with positional breakdown. - [Ratio to Percentage Calculator](https://api.miniwebtool.com/tools/ratio-to-percentage-calculator.md) (slug: `ratio-to-percentage-calculator`, category: Math · Number Systems, cost: 1cr) — Convert ratios, fractions, or decimal divisions to percentages. - [Scientific Notation to Decimal Converter](https://api.miniwebtool.com/tools/scientific-notation-to-decimal-converter.md) (slug: `scientific-notation-to-decimal-converter`, category: Math · Number Systems, cost: 1cr) — Convert scientific notation to ordinary decimal notation. - [Factorial Calculator](https://api.miniwebtool.com/tools/factorial-calculator.md) (slug: `factorial-calculator`, category: Math · Number Theory, cost: 1cr) — Calculate factorial metadata, exact values for bounded inputs, and scientific notation. - [Fibonacci Number Checker](https://api.miniwebtool.com/tools/fibonacci-number-checker.md) (slug: `fibonacci-number-checker`, category: Math · Number Theory, cost: 1cr) — Check whether a non-negative integer is in the Fibonacci sequence. - [Goldbach Conjecture Verifier](https://api.miniwebtool.com/tools/goldbach-conjecture-verifier.md) (slug: `goldbach-conjecture-verifier`, category: Math · Number Theory, cost: 1cr) — Verify an even integer by finding prime pairs that sum to it. - [Perfect Number Checker](https://api.miniwebtool.com/tools/perfect-number-checker.md) (slug: `perfect-number-checker`, category: Math · Number Theory, cost: 1cr) — Classify a positive integer as perfect, abundant, or deficient. - [Decimal to Percent Converter](https://api.miniwebtool.com/tools/decimal-to-percent-converter.md) (slug: `decimal-to-percent-converter`, category: Math · Percentage, cost: 1cr) — Convert one or more decimal numbers to percentages. - [Percentage Calculator](https://api.miniwebtool.com/tools/percentage-calculator.md) (slug: `percentage-calculator`, category: Math · Percentage, cost: 1cr) — Six percentage operations behind one endpoint, selected by mode. - [Percentage Error Calculator](https://api.miniwebtool.com/tools/percentage-error-calculator.md) (slug: `percentage-error-calculator`, category: Math · Percentage, cost: 1cr) — Calculate percent error between estimated and actual values. - [Percent Growth Rate Calculator](https://api.miniwebtool.com/tools/percent-growth-rate-calculator.md) (slug: `percent-growth-rate-calculator`, category: Math · Percentages, cost: 1cr) — Calculate total percent change, simple annual growth, CAGR, and multiplier. - [Acceleration Calculator](https://api.miniwebtool.com/tools/acceleration-calculator.md) (slug: `acceleration-calculator`, category: Math · Physics, cost: 1cr) — Calculate acceleration from velocity change, distance, force, centripetal motion, or free fall. - [Horsepower Calculator](https://api.miniwebtool.com/tools/horsepower-calculator.md) (slug: `horsepower-calculator`, category: Math · Physics, cost: 1cr) — Solve horsepower, torque, or RPM and return common power conversions. - [Binomial Probability Distribution Calculator](https://api.miniwebtool.com/tools/binomial-probability-distribution-calculator.md) (slug: `binomial-probability-distribution-calculator`, category: Math · Probability, cost: 1cr) — Calculate exact and cumulative binomial probabilities. - [Dice Roll Probability Calculator](https://api.miniwebtool.com/tools/dice-roll-probability-calculator.md) (slug: `dice-roll-probability-calculator`, category: Math · Probability, cost: 1cr) — Calculate exact probability metrics for sums of identical dice. - [Probability Calculator](https://api.miniwebtool.com/tools/probability-calculator.md) (slug: `probability-calculator`, category: Math · Probability, cost: 1cr) — Compute basic, conditional, Bayes, and complement probabilities. - [Aspect Ratio Calculator](https://api.miniwebtool.com/tools/aspect-ratio-calculator.md) (slug: `aspect-ratio-calculator`, category: Math · Ratios, cost: 1cr) — Simplify dimensions to a ratio, derive dimensions from a ratio, or resize proportionally. - [Proportion Calculator](https://api.miniwebtool.com/tools/proportion-calculator.md) (slug: `proportion-calculator`, category: Math · Ratios, cost: 1cr) — Solve or verify a proportion a/b = c/d from three or four values. - [Unit Rate Calculator](https://api.miniwebtool.com/tools/unit-rate-calculator.md) (slug: `unit-rate-calculator`, category: Math · Ratios, cost: 1cr) — Calculate a unit rate or compare two unit rates. - [Catalan Number Generator](https://api.miniwebtool.com/tools/catalan-number-generator.md) (slug: `catalan-number-generator`, category: Math · Sequence Tools, cost: 1cr) — Calculate the nth Catalan number and nearby sequence values. - [Collatz Conjecture Calculator](https://api.miniwebtool.com/tools/collatz-conjecture-calculator.md) (slug: `collatz-conjecture-calculator`, category: Math · Sequence Tools, cost: 1cr) — Generate and analyze the deterministic Collatz hailstone sequence. - [Arithmetic Sequence Calculator](https://api.miniwebtool.com/tools/arithmetic-sequence-calculator.md) (slug: `arithmetic-sequence-calculator`, category: Math · Sequences, cost: 1cr) — Calculate the nth term and partial sum of an arithmetic sequence. - [Geometric Sequence Calculator](https://api.miniwebtool.com/tools/geometric-sequence-calculator.md) (slug: `geometric-sequence-calculator`, category: Math · Sequences, cost: 1cr) — Calculate nth term, partial sum, and sample terms for a geometric sequence. - [Happy Number Calculator](https://api.miniwebtool.com/tools/happy-number-calculator.md) (slug: `happy-number-calculator`, category: Math · Sequences, cost: 1cr) — Check whether a number is happy or list happy numbers up to a limit. - [Sum of Cubes Calculator](https://api.miniwebtool.com/tools/sum-of-cubes-calculator.md) (slug: `sum-of-cubes-calculator`, category: Math · Sequences, cost: 1cr) — Calculate 1^3 + 2^3 + ... + n^3. - [Sum of Squares Calculator](https://api.miniwebtool.com/tools/sum-of-squares-calculator.md) (slug: `sum-of-squares-calculator`, category: Math · Sequences, cost: 1cr) — Calculate 1^2 + 2^2 + ... + n^2. - [Bike Gear Ratio Calculator](https://api.miniwebtool.com/tools/bike-gear-ratio-calculator.md) (slug: `bike-gear-ratio-calculator`, category: Math · Sports, cost: 1cr) — Calculate bicycle gear ratio, gear inches, rollout, gain ratio, and speed. - [Bowling Score Calculator](https://api.miniwebtool.com/tools/bowling-score-calculator.md) (slug: `bowling-score-calculator`, category: Math · Sports, cost: 1cr) — Score a ten-pin bowling game from roll values. - [Cricket Run Rate Calculator](https://api.miniwebtool.com/tools/cricket-run-rate-calculator.md) (slug: `cricket-run-rate-calculator`, category: Math · Sports, cost: 1cr) — Calculate current, projected, and required cricket run rates from cricket over notation. - [Usage Rate Calculator](https://api.miniwebtool.com/tools/usage-rate-calculator.md) (slug: `usage-rate-calculator`, category: Math · Sports, cost: 1cr) — Calculate basketball usage rate from player and team shot, free throw, turnover, and minute stats. - [ANOVA Calculator](https://api.miniwebtool.com/tools/anova-calculator.md) (slug: `anova-calculator`, category: Math · Statistics, cost: 1cr) — Run one-way ANOVA with F statistic, p-value, table components, and effect sizes. - [Arithmetic Mean Calculator](https://api.miniwebtool.com/tools/arithmetic-mean-calculator.md) (slug: `arithmetic-mean-calculator`, category: Math · Statistics, cost: 1cr) — Calculate arithmetic mean, median, modes, range, variance, and standard deviation from a number list. - [Average Calculator](https://api.miniwebtool.com/tools/average-calculator.md) (slug: `average-calculator`, category: Math · Statistics, cost: 1cr) — Calculate mean, median, mode, range, variance, and optional weighted average. - [Average Deviation Calculator](https://api.miniwebtool.com/tools/average-deviation-calculator.md) (slug: `average-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate mean and median absolute deviation for a numeric dataset. - [Box and Whisker Plot Maker](https://api.miniwebtool.com/tools/box-and-whisker-plot-maker.md) (slug: `box-and-whisker-plot-maker`, category: Math · Statistics, cost: 1cr) — Compute box plot statistics, whiskers, fences, and outliers. - [Chi Square Test Calculator](https://api.miniwebtool.com/tools/chi-square-test-calculator.md) (slug: `chi-square-test-calculator`, category: Math · Statistics, cost: 1cr) — Run a chi-square goodness-of-fit test for observed and expected counts. - [Coefficient of Variation Calculator](https://api.miniwebtool.com/tools/coefficient-of-variation-calculator.md) (slug: `coefficient-of-variation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate coefficient of variation from sample or population standard deviation. - [Cohen's d Calculator](https://api.miniwebtool.com/tools/cohens-d-calculator.md) (slug: `cohens-d-calculator`, category: Math · Statistics, cost: 1cr) — Calculate Cohen's d, Hedges' g, overlap, and effect-size interpretation. - [Correlation Coefficient Calculator](https://api.miniwebtool.com/tools/correlation-coefficient-calculator.md) (slug: `correlation-coefficient-calculator`, category: Math · Statistics, cost: 1cr) — Calculate Pearson, Spearman, and Kendall correlation coefficients. - [Find Minimum and Maximum](https://api.miniwebtool.com/tools/find-minimum-maximum.md) (slug: `find-minimum-maximum`, category: Math · Statistics, cost: 1cr) — Find min, max, range, mean, median, positions, and sorted values for a number list. - [Five Number Summary Calculator](https://api.miniwebtool.com/tools/five-number-summary-calculator.md) (slug: `five-number-summary-calculator`, category: Math · Statistics, cost: 1cr) — Calculate minimum, Q1, median, Q3, maximum, IQR, and outlier fences. - [Geometric Mean Calculator](https://api.miniwebtool.com/tools/geometric-mean-calculator.md) (slug: `geometric-mean-calculator`, category: Math · Statistics, cost: 1cr) — Calculate geometric mean and compare it with arithmetic, harmonic, median, minimum, and maximum values. - [Harmonic Mean Calculator](https://api.miniwebtool.com/tools/harmonic-mean-calculator.md) (slug: `harmonic-mean-calculator`, category: Math · Statistics, cost: 1cr) — Calculate harmonic mean for positive non-zero values with comparison means and reciprocal totals. - [Interquartile Range Calculator](https://api.miniwebtool.com/tools/interquartile-range-calculator.md) (slug: `interquartile-range-calculator`, category: Math · Statistics, cost: 1cr) — Calculate IQR, quartiles, and 1.5-IQR outlier fences. - [Mean Absolute Deviation Calculator](https://api.miniwebtool.com/tools/mean-absolute-deviation-calculator.md) (slug: `mean-absolute-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate mean or median absolute deviation for a numeric dataset. - [Mean Calculator](https://api.miniwebtool.com/tools/mean-calculator.md) (slug: `mean-calculator`, category: Math · Statistics, cost: 1cr) — Calculate arithmetic mean and supporting summary statistics. - [Median Absolute Deviation Calculator](https://api.miniwebtool.com/tools/median-absolute-deviation-calculator.md) (slug: `median-absolute-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate raw and scaled median absolute deviation as a robust spread measure. - [Median Calculator](https://api.miniwebtool.com/tools/median-calculator.md) (slug: `median-calculator`, category: Math · Statistics, cost: 1cr) — Calculate the median, sorted data, quartiles, and range. - [Midrange Calculator](https://api.miniwebtool.com/tools/midrange-calculator.md) (slug: `midrange-calculator`, category: Math · Statistics, cost: 1cr) — Calculate the midpoint between the minimum and maximum of a dataset. - [Mode Calculator](https://api.miniwebtool.com/tools/mode-calculator.md) (slug: `mode-calculator`, category: Math · Statistics, cost: 1cr) — Find the mode or modes and frequency table for a numeric dataset. - [Outlier Calculator](https://api.miniwebtool.com/tools/outlier-calculator.md) (slug: `outlier-calculator`, category: Math · Statistics, cost: 1cr) — Detect IQR outliers and return quartiles, bounds, and counts. - [Population Variance Calculator](https://api.miniwebtool.com/tools/population-variance-calculator.md) (slug: `population-variance-calculator`, category: Math · Statistics, cost: 1cr) — Calculate population variance and population standard deviation. - [Quartile Calculator](https://api.miniwebtool.com/tools/quartile-calculator.md) (slug: `quartile-calculator`, category: Math · Statistics, cost: 1cr) — Calculate Q1, Q2, Q3, IQR, and outlier fences using a selected quartile method. - [Quartile Deviation Calculator](https://api.miniwebtool.com/tools/quartile-deviation-calculator.md) (slug: `quartile-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate quartile deviation, IQR fences, and outliers for numeric data. - [Relative Standard Deviation Calculator](https://api.miniwebtool.com/tools/relative-standard-deviation-calculator.md) (slug: `relative-standard-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate RSD, coefficient of variation, and precision quality for data. - [Root Mean Square Calculator](https://api.miniwebtool.com/tools/root-mean-square-calculator.md) (slug: `root-mean-square-calculator`, category: Math · Statistics, cost: 1cr) — Calculate root mean square for a numeric list. - [Sample Mean Calculator](https://api.miniwebtool.com/tools/sample-mean-calculator.md) (slug: `sample-mean-calculator`, category: Math · Statistics, cost: 1cr) — Calculate sample mean plus core descriptive statistics for a numeric dataset. - [Sample Standard Deviation Calculator](https://api.miniwebtool.com/tools/sample-standard-deviation-calculator.md) (slug: `sample-standard-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate sample standard deviation and optional z-score outliers. - [Sample Variance Calculator](https://api.miniwebtool.com/tools/sample-variance-calculator.md) (slug: `sample-variance-calculator`, category: Math · Statistics, cost: 1cr) — Calculate sample or population variance from a numeric dataset. - [Standard Deviation Calculator](https://api.miniwebtool.com/tools/standard-deviation-calculator.md) (slug: `standard-deviation-calculator`, category: Math · Statistics, cost: 1cr) — Calculate sample and population standard deviation with quartiles. - [Standard Error Calculator](https://api.miniwebtool.com/tools/standard-error-calculator.md) (slug: `standard-error-calculator`, category: Math · Statistics, cost: 1cr) — Calculate standard error of the mean and a z-based confidence interval. - [Variance Calculator](https://api.miniwebtool.com/tools/variance-calculator.md) (slug: `variance-calculator`, category: Math · Statistics, cost: 1cr) — Calculate sample and population variance with related statistics. - [Weibull Distribution Calculator](https://api.miniwebtool.com/tools/weibull-distribution-calculator.md) (slug: `weibull-distribution-calculator`, category: Math · Statistics, cost: 1cr) — Calculate Weibull PDF/CDF/reliability, moments, and B-life values. - [Z-Score Calculator](https://api.miniwebtool.com/tools/zscore-calculator.md) (slug: `zscore-calculator`, category: Math · Statistics, cost: 1cr) — Calculate z-scores, inverse values, percentiles, and normal probabilities. - [Surface Area of a Cone Calculator](https://api.miniwebtool.com/tools/surface-area-of-a-cone-calculator.md) (slug: `surface-area-of-a-cone-calculator`, category: Math · Surface Area, cost: 1cr) — Calculate cone base, lateral, and total surface area from radius-height, radius-slant, or diameter-height inputs. - [Surface Area of a Cube Calculator](https://api.miniwebtool.com/tools/surface-area-of-a-cube-calculator.md) (slug: `surface-area-of-a-cube-calculator`, category: Math · Surface Area, cost: 1cr) — Calculate cube surface area and related measurements from edge, diagonal, volume, or surface area. - [Commute Life Wasted Calculator](https://api.miniwebtool.com/tools/commute-life-wasted-calculator.md) (slug: `commute-life-wasted-calculator`, category: Math · Time, cost: 1cr) — Estimate weekly, yearly, and career time spent commuting. - [Arccos Calculator](https://api.miniwebtool.com/tools/arccos-calculator.md) (slug: `arccos-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate inverse cosine in radians and degrees. - [Arcsin Calculator](https://api.miniwebtool.com/tools/arcsin-calculator.md) (slug: `arcsin-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate arcsine from a sine value, including degree/radian output and special-angle recognition. - [Arctan Calculator](https://api.miniwebtool.com/tools/arctan-calculator.md) (slug: `arctan-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate inverse tangent in radians and degrees. - [Arctan2 Calculator](https://api.miniwebtool.com/tools/arctan2-calculator.md) (slug: `arctan2-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate atan2(y, x), normalized angle, radius, slope, and quadrant. - [Cosine Calculator](https://api.miniwebtool.com/tools/cosine-calculator.md) (slug: `cosine-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate cosine with radians/degrees conversion, quadrant, and special-angle recognition. - [Cosecant/Secant/Cotangent Calculator](https://api.miniwebtool.com/tools/csc-sec-cot-calculator.md) (slug: `csc-sec-cot-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate csc, sec, cot, sine, and cosine for an angle. - [Degree to Radian Converter](https://api.miniwebtool.com/tools/degree-to-radian-converter.md) (slug: `degree-to-radian-converter`, category: Math · Trigonometry, cost: 1cr) — Convert degrees to radians with pi-fraction, quadrant, and trig values. - [DMS to Decimal Degrees Converter](https://api.miniwebtool.com/tools/dms-to-decimal-converter.md) (slug: `dms-to-decimal-converter`, category: Math · Trigonometry, cost: 1cr) — Convert degrees, minutes, and seconds to signed decimal degrees. - [Law of Cosines Calculator](https://api.miniwebtool.com/tools/law-of-cosines-calculator.md) (slug: `law-of-cosines-calculator`, category: Math · Trigonometry, cost: 1cr) — Use the law of cosines to solve a side or included angle. - [Law of Sines Calculator](https://api.miniwebtool.com/tools/law-of-sines-calculator.md) (slug: `law-of-sines-calculator`, category: Math · Trigonometry, cost: 1cr) — Use the law of sines to solve a side or possible angle. - [Sine Calculator](https://api.miniwebtool.com/tools/sine-calculator.md) (slug: `sine-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate sine with radians/degrees conversion, quadrant, and special-angle recognition. - [Tangent Calculator](https://api.miniwebtool.com/tools/tangent-calculator.md) (slug: `tangent-calculator`, category: Math · Trigonometry, cost: 1cr) — Calculate tangent and flag vertical-asymptote inputs. - [Acres to Hectares Converter](https://api.miniwebtool.com/tools/acres-to-hectares-converter.md) (slug: `acres-to-hectares-converter`, category: Math · Unit Converters, cost: 1cr) — Convert between acres and hectares with related area units. - [Acres to Perches Converter](https://api.miniwebtool.com/tools/acres-to-perches-converter.md) (slug: `acres-to-perches-converter`, category: Math · Unit Converters, cost: 1cr) — Convert acres and perches for land area calculations. - [Acres to Square Feet Converter](https://api.miniwebtool.com/tools/acres-to-square-feet-converter.md) (slug: `acres-to-square-feet-converter`, category: Math · Unit Converters, cost: 1cr) — Convert between acres and square feet with related area units. - [Acres to Square Meters Converter](https://api.miniwebtool.com/tools/acres-to-square-meters-converter.md) (slug: `acres-to-square-meters-converter`, category: Math · Unit Converters, cost: 1cr) — Convert between acres and square meters with related area units. - [Acres to Square Miles Converter](https://api.miniwebtool.com/tools/acres-to-square-miles-converter.md) (slug: `acres-to-square-miles-converter`, category: Math · Unit Converters, cost: 1cr) — Convert acres and square miles, including related land-area units. - [Acres to Square Yards Converter](https://api.miniwebtool.com/tools/acres-to-square-yards-converter.md) (slug: `acres-to-square-yards-converter`, category: Math · Unit Converters, cost: 1cr) — Convert acres and square yards, including related area units. - [Angle Converter](https://api.miniwebtool.com/tools/angle-converter.md) (slug: `angle-converter`, category: Math · Unit Converters, cost: 1cr) — Convert angles between degrees, radians, gradians, turns, arcminutes, arcseconds, and milliradians. - [CM to Inches Converter](https://api.miniwebtool.com/tools/cm-to-inches-converter.md) (slug: `cm-to-inches-converter`, category: Math · Unit Converters, cost: 1cr) — Convert centimeters to inches, feet/inches, and nearest 1/16-inch fraction. - [Cups to Tablespoons Converter](https://api.miniwebtool.com/tools/cups-to-tablespoons-converter.md) (slug: `cups-to-tablespoons-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US cups and tablespoons, including teaspoons and fluid ounces. - [Feet to Meters Converter](https://api.miniwebtool.com/tools/feet-to-meters-converter.md) (slug: `feet-to-meters-converter`, category: Math · Unit Converters, cost: 1cr) — Convert feet and optional inches to meters, centimeters, and millimeters. - [Gallons to Cups Converter](https://api.miniwebtool.com/tools/gallons-to-cups-converter.md) (slug: `gallons-to-cups-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US gallons and cups, with quart and pint equivalents. - [Grams to Ounces Converter](https://api.miniwebtool.com/tools/grams-to-ounces-converter.md) (slug: `grams-to-ounces-converter`, category: Math · Unit Converters, cost: 1cr) — Convert grams to ounces, pounds, kilograms, and milligrams. - [Grams to Pounds Converter](https://api.miniwebtool.com/tools/grams-to-pounds-converter.md) (slug: `grams-to-pounds-converter`, category: Math · Unit Converters, cost: 1cr) — Convert grams to pounds, ounces, and kilograms. - [Inches to CM Converter](https://api.miniwebtool.com/tools/inches-to-cm-converter.md) (slug: `inches-to-cm-converter`, category: Math · Unit Converters, cost: 1cr) — Convert inches to centimeters, millimeters, meters, and feet. - [kg to lbs Converter](https://api.miniwebtool.com/tools/kg-to-lbs-converter.md) (slug: `kg-to-lbs-converter`, category: Math · Unit Converters, cost: 1cr) — Convert kilograms and pounds with ounce breakdown. - [kPa to psi Converter](https://api.miniwebtool.com/tools/kpa-to-psi-converter.md) (slug: `kpa-to-psi-converter`, category: Math · Unit Converters, cost: 1cr) — Convert kilopascals to psi, bar, atm, and mmHg. - [Liters to Cups Converter](https://api.miniwebtool.com/tools/liters-to-cups-converter.md) (slug: `liters-to-cups-converter`, category: Math · Unit Converters, cost: 1cr) — Convert liters to US, metric, and imperial cups. - [Meters to Feet Converter](https://api.miniwebtool.com/tools/meters-to-feet-converter.md) (slug: `meters-to-feet-converter`, category: Math · Unit Converters, cost: 1cr) — Convert meters to decimal feet and feet-and-inches. - [Ounce to Gram Converter](https://api.miniwebtool.com/tools/ounce-to-gram-converter.md) (slug: `ounce-to-gram-converter`, category: Math · Unit Converters, cost: 1cr) — Convert ounces to grams, kilograms, milligrams, and pounds. - [Ounces to Cups Converter](https://api.miniwebtool.com/tools/ounces-to-cups-converter.md) (slug: `ounces-to-cups-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US fluid ounces and cups with spoon and milliliter equivalents. - [Percent to PPM Converter](https://api.miniwebtool.com/tools/percent-to-ppm-converter.md) (slug: `percent-to-ppm-converter`, category: Math · Unit Converters, cost: 1cr) — Convert percent to ppm or ppm to percent. - [Perches to Acres Converter](https://api.miniwebtool.com/tools/perches-to-acres-converter.md) (slug: `perches-to-acres-converter`, category: Math · Unit Converters, cost: 1cr) — Convert perches and acres for land area calculations. - [Pounds to Grams Converter](https://api.miniwebtool.com/tools/pounds-to-grams-converter.md) (slug: `pounds-to-grams-converter`, category: Math · Unit Converters, cost: 1cr) — Convert pounds to grams, kilograms, ounces, and milligrams. - [PPM to Percent Converter](https://api.miniwebtool.com/tools/ppm-to-percent-converter.md) (slug: `ppm-to-percent-converter`, category: Math · Unit Converters, cost: 1cr) — Convert parts per million to percentage and related concentration scales. - [Square Yards to Acres Converter](https://api.miniwebtool.com/tools/square-yards-to-acres-converter.md) (slug: `square-yards-to-acres-converter`, category: Math · Unit Converters, cost: 1cr) — Convert square yards and acres, including related area units. - [Tablespoons to Cups Converter](https://api.miniwebtool.com/tools/tablespoons-to-cups-converter.md) (slug: `tablespoons-to-cups-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US tablespoons to cups, teaspoons, fluid ounces, and milliliters. - [Tablespoons to Teaspoons Converter](https://api.miniwebtool.com/tools/tablespoons-to-teaspoons-converter.md) (slug: `tablespoons-to-teaspoons-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US tablespoons to teaspoons, cups, fluid ounces, and milliliters. - [Teaspoons to Cups Converter](https://api.miniwebtool.com/tools/teaspoons-to-cups-converter.md) (slug: `teaspoons-to-cups-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US teaspoons and cups, including tablespoons and fluid ounces. - [Teaspoons to Tablespoons Converter](https://api.miniwebtool.com/tools/teaspoons-to-tablespoons-converter.md) (slug: `teaspoons-to-tablespoons-converter`, category: Math · Unit Converters, cost: 1cr) — Convert US teaspoons to tablespoons, cups, fluid ounces, and milliliters. - [Cups to Gallons Converter](https://api.miniwebtool.com/tools/cups-to-gallons-converter.md) (slug: `cups-to-gallons-converter`, category: Math · Volume, cost: 1cr) — Convert US cups and gallons with related volume units. - [Cups to Liters Converter](https://api.miniwebtool.com/tools/cups-to-liters-converter.md) (slug: `cups-to-liters-converter`, category: Math · Volume, cost: 1cr) — Convert US cups and liters with milliliter, fluid-ounce, and spoon equivalents. - [Cups to Ounces Converter](https://api.miniwebtool.com/tools/cups-to-ounces-converter.md) (slug: `cups-to-ounces-converter`, category: Math · Volume, cost: 1cr) — Convert cups and fluid ounces for US customary, US legal, imperial, or metric cups. - [Cups to Quarts Converter](https://api.miniwebtool.com/tools/cups-to-quarts-converter.md) (slug: `cups-to-quarts-converter`, category: Math · Volume, cost: 1cr) — Convert US cups and quarts with related volume units. - [Cups to Teaspoons Converter](https://api.miniwebtool.com/tools/cups-to-teaspoons-converter.md) (slug: `cups-to-teaspoons-converter`, category: Math · Volume, cost: 1cr) — Convert US cups and teaspoons with tablespoon and fluid-ounce equivalents. - [Volume of a Cone Calculator](https://api.miniwebtool.com/tools/volume-of-a-cone-calculator.md) (slug: `volume-of-a-cone-calculator`, category: Math · Volume, cost: 1cr) — Calculate cone volume, slant height, base area, lateral area, and total surface area. - [Volume of a Cube Calculator](https://api.miniwebtool.com/tools/volume-of-a-cube-calculator.md) (slug: `volume-of-a-cube-calculator`, category: Math · Volume, cost: 1cr) — Calculate cube volume, surface area, face area, diagonals, and total edge length. - [Volume of a Pyramid Calculator](https://api.miniwebtool.com/tools/volume-of-a-pyramid-calculator.md) (slug: `volume-of-a-pyramid-calculator`, category: Math · Volume, cost: 1cr) — Calculate volume, base area, slant height, and surface area for square, rectangular, or triangular pyramids. - [Volume of a Rectangular Prism Calculator](https://api.miniwebtool.com/tools/volume-of-a-rectangular-prism-calculator.md) (slug: `volume-of-a-rectangular-prism-calculator`, category: Math · Volume, cost: 1cr) — Calculate rectangular prism volume, surface area, diagonals, base perimeter, and total edge length. - [Volume of Ellipsoid Calculator](https://api.miniwebtool.com/tools/volume-of-ellipsoid-calculator.md) (slug: `volume-of-ellipsoid-calculator`, category: Math · Volume, cost: 1cr) — Calculate ellipsoid volume, approximate surface area, cross sections, equivalent sphere radius, and shape type. - [Tire Size Calculator](https://api.miniwebtool.com/tools/tire-size-calculator.md) (slug: `tire-size-calculator`, category: Miscellaneous · General Tools, cost: 1cr) — Calculate tire sidewall, diameter, circumference, and revolutions per mile. - [Test Score Calculator](https://api.miniwebtool.com/tools/test-score-calculator.md) (slug: `test-score-calculator`, category: Miscellaneous · Student Calculators, cost: 1cr) — Convert earned and total test points into a percentage, letter grade, and GPA points. - [Weighted Grade Calculator](https://api.miniwebtool.com/tools/weighted-grade-calculator.md) (slug: `weighted-grade-calculator`, category: Miscellaneous · Student Calculators, cost: 1cr) — Calculate a weighted course grade from category weights and scores. - [Daily Time Savings Calculator](https://api.miniwebtool.com/tools/daily-time-savings-calculator.md) (slug: `daily-time-savings-calculator`, category: Miscellaneous · Time, cost: 1cr) — Calculate yearly, monthly, and weekly time saved from a small daily savings habit. - [Boiling Point Calculator](https://api.miniwebtool.com/tools/boiling-point-calculator.md) (slug: `boiling-point-calculator`, category: Physics · Thermodynamics, cost: 1cr) — Calculate water boiling point from altitude or atmospheric pressure. - [Random Playing Card Generator](https://api.miniwebtool.com/tools/random-playing-card-generator.md) (slug: `random-playing-card-generator`, category: Random · Cards, cost: 1cr) — Draw random playing cards from a standard deck with optional jokers. - [Random Color Generator](https://api.miniwebtool.com/tools/random-color-generator.md) (slug: `random-color-generator`, category: Random · Color, cost: 1cr) — Generate random HEX, RGB, and HSL colors with optional harmony rules. - [Random Date Generator](https://api.miniwebtool.com/tools/random-date-generator.md) (slug: `random-date-generator`, category: Random · Date, cost: 1cr) — Generate random dates inside a bounded date range. - [List Randomizer](https://api.miniwebtool.com/tools/list-randomizer.md) (slug: `list-randomizer`, category: Random · Lists, cost: 1cr) — Shuffle a newline-separated list into random order. - [Random Group Generator](https://api.miniwebtool.com/tools/random-group-generator.md) (slug: `random-group-generator`, category: Random · Lists, cost: 1cr) — Create random balanced groups from a newline-separated list of names. - [Random Line Picker](https://api.miniwebtool.com/tools/random-line-picker.md) (slug: `random-line-picker`, category: Random · Lists, cost: 1cr) — Pick random non-empty lines from user-supplied text. - [Random Port Number Generator](https://api.miniwebtool.com/tools/random-port-number-generator.md) (slug: `random-port-number-generator`, category: Random · Network, cost: 1cr) — Generate random network port numbers in standard or custom ranges. - [Random Decimal Number Generator](https://api.miniwebtool.com/tools/random-decimal-number-generator.md) (slug: `random-decimal-number-generator`, category: Random · Numbers, cost: 1cr) — Generate random decimal numbers between 0 and 1 with configurable precision. - [Random Integer Generator](https://api.miniwebtool.com/tools/random-integer-generator.md) (slug: `random-integer-generator`, category: Random · Numbers, cost: 1cr) — Generate random integers with optional uniqueness, sorting, exclusions, and seed replay. - [Random Quote Generator](https://api.miniwebtool.com/tools/random-quote-generator.md) (slug: `random-quote-generator`, category: Random · Quotes, cost: 3cr) — Generate or search quotes from a bundled SQLite quote database. - [Random Letter Generator](https://api.miniwebtool.com/tools/random-letter-generator.md) (slug: `random-letter-generator`, category: Random · Text, cost: 1cr) — Generate random letters with case, vowel/consonant, and duplicate controls. - [Random String Generator](https://api.miniwebtool.com/tools/random-string-generator.md) (slug: `random-string-generator`, category: Random · Text, cost: 1cr) — Generate random strings, passwords, API keys, tokens, PINs, or hex strings. - [Astronomical Unit Converter](https://api.miniwebtool.com/tools/astronomical-unit-converter.md) (slug: `astronomical-unit-converter`, category: Science · Astronomy, cost: 1cr) — Convert astronomical distances among AU, light-time, parsecs, kilometers, and miles. - [Percent Yield Calculator](https://api.miniwebtool.com/tools/percent-yield-calculator.md) (slug: `percent-yield-calculator`, category: Science · Chemistry, cost: 1cr) — Solve percent yield, actual yield, or theoretical yield. - [Parallel Resistor Calculator](https://api.miniwebtool.com/tools/parallel-resistor-calculator.md) (slug: `parallel-resistor-calculator`, category: Science · Electrical, cost: 1cr) — Calculate equivalent resistance and current sharing for resistors in parallel. - [Power Factor Calculator](https://api.miniwebtool.com/tools/power-factor-calculator.md) (slug: `power-factor-calculator`, category: Science · Electrical, cost: 1cr) — Calculate power factor, reactive power, or capacitor correction values. - [RC Time Constant Calculator](https://api.miniwebtool.com/tools/rc-time-constant-calculator.md) (slug: `rc-time-constant-calculator`, category: Science · Electrical, cost: 1cr) — Calculate RC circuit time constant, cutoff frequency, and charging or discharging levels. - [555 Timer Calculator](https://api.miniwebtool.com/tools/555-timer-calculator.md) (slug: `555-timer-calculator`, category: Science · Electronics, cost: 1cr) — Calculate 555 timer astable frequency, period, duty cycle, or monostable pulse width. - [Capacitor Calculator](https://api.miniwebtool.com/tools/capacitor-calculator.md) (slug: `capacitor-calculator`, category: Science · Electronics, cost: 1cr) — Calculate capacitor charge, stored energy, reactance, RC timing, or decode ceramic capacitor codes. - [Decibel (dB) Calculator](https://api.miniwebtool.com/tools/decibel-db-calculator.md) (slug: `decibel-db-calculator`, category: Science · Electronics, cost: 1cr) — Calculate power dB, voltage dB, dB ratios, and dBm/dBW/watt conversions. - [Ohm's Law Calculator](https://api.miniwebtool.com/tools/ohm-s-law-calculator.md) (slug: `ohm-s-law-calculator`, category: Science · Electronics, cost: 1cr) — Calculate voltage, current, resistance, and power from any two known values. - [Resonant Frequency Calculator](https://api.miniwebtool.com/tools/resonant-frequency-calculator.md) (slug: `resonant-frequency-calculator`, category: Science · Electronics, cost: 1cr) — Calculate LC/RLC resonant frequency, inductance, capacitance, impedance, Q factor, and bandwidth. - [Density Calculator](https://api.miniwebtool.com/tools/density-calculator.md) (slug: `density-calculator`, category: Science · Physics, cost: 1cr) — Solve density, mass, or volume with common unit conversions. - [Force Calculator](https://api.miniwebtool.com/tools/force-calculator.md) (slug: `force-calculator`, category: Science · Physics, cost: 1cr) — Solve Newton's second law for force, mass, or acceleration with common unit conversions. - [Kinetic Energy Calculator](https://api.miniwebtool.com/tools/kinetic-energy-calculator.md) (slug: `kinetic-energy-calculator`, category: Science · Physics, cost: 1cr) — Solve kinetic energy, mass, or velocity with KE = 1/2 m v^2 and unit conversions. - [Momentum Calculator](https://api.miniwebtool.com/tools/momentum-calculator.md) (slug: `momentum-calculator`, category: Science · Physics, cost: 1cr) — Calculate linear momentum and kinetic energy from mass and velocity. - [Potential Energy Calculator](https://api.miniwebtool.com/tools/potential-energy-calculator.md) (slug: `potential-energy-calculator`, category: Science · Physics, cost: 1cr) — Calculate gravitational or elastic potential energy and solve for missing variables. - [Torque Calculator](https://api.miniwebtool.com/tools/torque-calculator.md) (slug: `torque-calculator`, category: Science · Physics, cost: 1cr) — Solve torque, force, lever arm distance, or angle using tau = F r sin(theta). - [Velocity Calculator](https://api.miniwebtool.com/tools/velocity-calculator.md) (slug: `velocity-calculator`, category: Science · Physics, cost: 1cr) — Calculate average velocity, distance, time, or relative velocity with distance, time, and speed units. - [Work and Power Calculator](https://api.miniwebtool.com/tools/work-and-power-calculator.md) (slug: `work-and-power-calculator`, category: Science · Physics, cost: 1cr) — Calculate mechanical work and power with common unit conversions. - [Electricity Calculator](https://api.miniwebtool.com/tools/electricity-calculator.md) (slug: `electricity-calculator`, category: Science · Physics Calculators, cost: 1cr) — Solve voltage, current, resistance, and power from any two known Ohm's law values. - [Bar to PSI Converter](https://api.miniwebtool.com/tools/bar-to-psi-converter.md) (slug: `bar-to-psi-converter`, category: Science · Pressure, cost: 1cr) — Convert bar and PSI, including kPa, MPa, atm, torr, inHg, and Pa. - [psi to kPa Converter](https://api.miniwebtool.com/tools/psi-to-kpa-converter.md) (slug: `psi-to-kpa-converter`, category: Science · Pressure, cost: 1cr) — Convert pounds per square inch to kilopascals and related pressure units. - [Celsius to Fahrenheit Calculator](https://api.miniwebtool.com/tools/celsius-to-fahrenheit-calculator.md) (slug: `celsius-to-fahrenheit-calculator`, category: Science · Temperature, cost: 1cr) — Convert Celsius to Fahrenheit and related temperature scales. - [Celsius to Kelvin Converter](https://api.miniwebtool.com/tools/celsius-to-kelvin-converter.md) (slug: `celsius-to-kelvin-converter`, category: Science · Temperature, cost: 1cr) — Convert Celsius to Kelvin and related temperature scales. - [Celsius to Rankine Converter](https://api.miniwebtool.com/tools/celsius-to-rankine-converter.md) (slug: `celsius-to-rankine-converter`, category: Science · Temperature, cost: 1cr) — Convert Celsius to Rankine and related temperature scales. - [Fahrenheit to Celsius Calculator](https://api.miniwebtool.com/tools/fahrenheit-to-celsius-calculator.md) (slug: `fahrenheit-to-celsius-calculator`, category: Science · Temperature, cost: 1cr) — Convert Fahrenheit to Celsius and related temperature scales. - [Fahrenheit to Kelvin Converter](https://api.miniwebtool.com/tools/fahrenheit-to-kelvin-converter.md) (slug: `fahrenheit-to-kelvin-converter`, category: Science · Temperature, cost: 1cr) — Convert Fahrenheit to Kelvin and related temperature scales. - [Fahrenheit to Rankine Converter](https://api.miniwebtool.com/tools/fahrenheit-to-rankine-converter.md) (slug: `fahrenheit-to-rankine-converter`, category: Science · Temperature, cost: 1cr) — Convert Fahrenheit to Rankine and related temperature scales. - [Kelvin to Celsius Converter](https://api.miniwebtool.com/tools/kelvin-to-celsius-converter.md) (slug: `kelvin-to-celsius-converter`, category: Science · Temperature, cost: 1cr) — Convert Kelvin to Celsius and related temperature scales. - [Kelvin to Fahrenheit Converter](https://api.miniwebtool.com/tools/kelvin-to-fahrenheit-converter.md) (slug: `kelvin-to-fahrenheit-converter`, category: Science · Temperature, cost: 1cr) — Convert Kelvin to Fahrenheit and related temperature scales. - [Rankine to Celsius Converter](https://api.miniwebtool.com/tools/rankine-to-celsius-converter.md) (slug: `rankine-to-celsius-converter`, category: Science · Temperature, cost: 1cr) — Convert Rankine to Celsius and related temperature scales. - [Rankine to Fahrenheit Converter](https://api.miniwebtool.com/tools/rankine-to-fahrenheit-converter.md) (slug: `rankine-to-fahrenheit-converter`, category: Science · Temperature, cost: 1cr) — Convert Rankine to Fahrenheit and related temperature scales. - [Energy Converter](https://api.miniwebtool.com/tools/energy-converter.md) (slug: `energy-converter`, category: Science · Unit Converters, cost: 1cr) — Convert energy between joules, calories, BTU, watt-hours, electronvolts, ergs, and therms. - [Power Converter](https://api.miniwebtool.com/tools/power-converter.md) (slug: `power-converter`, category: Science · Unit Converters, cost: 1cr) — Convert power among watts, kilowatts, horsepower, BTU per hour, refrigeration tons, and related units. - [Ultimate Frequency & Wavelength Converter](https://api.miniwebtool.com/tools/ultimate-frequency-wavelength-converter.md) (slug: `ultimate-frequency-wavelength-converter`, category: Science · Unit Converters, cost: 1cr) — Convert between frequency and wavelength using a configurable propagation speed and identify the spectrum band. - [Wind Chill Calculator](https://api.miniwebtool.com/tools/wind-chill-calculator.md) (slug: `wind-chill-calculator`, category: Science · Weather, cost: 1cr) — Calculate NWS wind chill and frostbite risk from air temperature and wind speed. - [At Bats per Home Run Calculator](https://api.miniwebtool.com/tools/at-bats-per-home-run-calculator.md) (slug: `at-bats-per-home-run-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball at-bats per home run ratio and home run rate. - [Batting Average Calculator](https://api.miniwebtool.com/tools/batting-average-calculator.md) (slug: `batting-average-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball batting average from hits and at-bats. - [ERA Calculator](https://api.miniwebtool.com/tools/era-calculator.md) (slug: `era-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball earned run average. - [FIP Calculator](https://api.miniwebtool.com/tools/fip-calculator.md) (slug: `fip-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball fielding independent pitching. - [OPS Calculator](https://api.miniwebtool.com/tools/ops-calculator.md) (slug: `ops-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball on-base plus slugging with OBP and SLG components. - [Slugging Percentage Calculator](https://api.miniwebtool.com/tools/slugging-percentage-calculator.md) (slug: `slugging-percentage-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball slugging percentage from hit types. - [Total Bases Calculator](https://api.miniwebtool.com/tools/total-bases-calculator.md) (slug: `total-bases-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball total bases from singles, doubles, triples, and home runs. - [WAR Calculator](https://api.miniwebtool.com/tools/war-calculator.md) (slug: `war-calculator`, category: Sports · Baseball, cost: 1cr) — Estimate simplified baseball WAR for position players or pitchers. - [WHIP Calculator](https://api.miniwebtool.com/tools/whip-calculator.md) (slug: `whip-calculator`, category: Sports · Baseball, cost: 1cr) — Calculate baseball WHIP with baseball innings notation support. - [Effective Field Goal Percentage Calculator](https://api.miniwebtool.com/tools/efg-calculator.md) (slug: `efg-calculator`, category: Sports · Basketball, cost: 1cr) — Calculate basketball effective field goal percentage. - [Field Goal Percentage Calculator](https://api.miniwebtool.com/tools/field-goal-percentage-calculator.md) (slug: `field-goal-percentage-calculator`, category: Sports · Basketball, cost: 1cr) — Calculate made-shot percentage and related shooting metrics. - [Rebound Rate Calculator](https://api.miniwebtool.com/tools/rebound-rate-calculator.md) (slug: `rebound-rate-calculator`, category: Sports · Basketball, cost: 1cr) — Calculate basketball offensive, defensive, and total rebound rates. - [True Shooting Percentage Calculator](https://api.miniwebtool.com/tools/true-shooting-percentage-calculator.md) (slug: `true-shooting-percentage-calculator`, category: Sports · Basketball, cost: 1cr) — Calculate basketball true shooting percentage from points, FGA, and FTA. - [Character Counter](https://api.miniwebtool.com/tools/character-counter.md) (slug: `character-counter`, category: Text · Analysis, cost: 1cr) — Count characters, letters, digits, whitespace, and punctuation. - [Compare Two Strings](https://api.miniwebtool.com/tools/compare-two-strings.md) (slug: `compare-two-strings`, category: Text · Analysis, cost: 1cr) — Compare two strings with equality, similarity, edit distance, and diff statistics. - [Find Longest Line](https://api.miniwebtool.com/tools/find-longest-line.md) (slug: `find-longest-line`, category: Text · Analysis, cost: 1cr) — Rank text lines by character, word, or byte length and return the longest lines. - [Line Counter](https://api.miniwebtool.com/tools/line-counter.md) (slug: `line-counter`, category: Text · Analysis, cost: 1cr) — Count total / non-empty / empty lines and longest-line length. - [Pangram Checker](https://api.miniwebtool.com/tools/pangram-checker.md) (slug: `pangram-checker`, category: Text · Analysis, cost: 1cr) — Check whether text contains every letter A through Z. - [Sentence Counter](https://api.miniwebtool.com/tools/sentence-counter.md) (slug: `sentence-counter`, category: Text · Analysis, cost: 1cr) — Count sentences and classify sentence type and basic complexity. - [Word Counter](https://api.miniwebtool.com/tools/word-counter.md) (slug: `word-counter`, category: Text · Analysis, cost: 1cr) — Count words, characters, sentences, paragraphs, reading/speaking time, top words. - [CSS Beautifier](https://api.miniwebtool.com/tools/css-beautifier.md) (slug: `css-beautifier`, category: Text · Css, cost: 1cr) — Format compact CSS with indentation and line breaks. - [Text Case Converter](https://api.miniwebtool.com/tools/lowercase-uppercase-letters.md) (slug: `lowercase-uppercase-letters`, category: Text · Case, cost: 1cr) — Convert text to uppercase, lowercase, title, sentence, camel, snake, kebab, and related cases. - [Title Case Converter](https://api.miniwebtool.com/tools/title-case-converter.md) (slug: `title-case-converter`, category: Text · Case, cost: 1cr) — Convert text to title case using smart, APA, Chicago, MLA, AP, or simple capitalization rules. - [Remove Duplicate Lines](https://api.miniwebtool.com/tools/remove-duplicate-lines.md) (slug: `remove-duplicate-lines`, category: Text · Deduplication, cost: 1cr) — Remove duplicate text lines while keeping first, last, or only unique occurrences. - [Morse Code Generator](https://api.miniwebtool.com/tools/morse-code-generator.md) (slug: `morse-code-generator`, category: Text · Encoding, cost: 1cr) — Convert text to International Morse code with character breakdown. - [ASCII Art Generator](https://api.miniwebtool.com/tools/ascii-art-generator.md) (slug: `ascii-art-generator`, category: Text · Formatting, cost: 1cr) — Generate deterministic ASCII banner art from short text. - [Buzzword Bingo Generator](https://api.miniwebtool.com/tools/buzzword-bingo-generator.md) (slug: `buzzword-bingo-generator`, category: Text · Generators, cost: 1cr) — Generate a deterministic buzzword bingo board from a term list and seed. - [List Difference Calculator](https://api.miniwebtool.com/tools/list-difference-calculator.md) (slug: `list-difference-calculator`, category: Text · Lists, cost: 1cr) — Compare two line-based lists and return differences, intersection, and union. - [Add Line Numbers](https://api.miniwebtool.com/tools/add-line-numbers.md) (slug: `add-line-numbers`, category: Text · Modification, cost: 1cr) — Add configurable line numbers to the start or end of each text line. - [Add Prefix and Suffix](https://api.miniwebtool.com/tools/add-prefix-and-suffix.md) (slug: `add-prefix-and-suffix`, category: Text · Modification, cost: 1cr) — Add prefix, suffix, and optional numbering to each text line, word, or delimited item. - [Remove Accent](https://api.miniwebtool.com/tools/remove-accent.md) (slug: `remove-accent`, category: Text · Modification, cost: 1cr) — Remove accents and combining marks from Unicode text. - [Remove Line Numbers](https://api.miniwebtool.com/tools/remove-line-numbers.md) (slug: `remove-line-numbers`, category: Text · Modification, cost: 1cr) — Strip numeric prefixes such as line numbers from each line of text. - [Remove Lines Containing](https://api.miniwebtool.com/tools/remove-lines-containing.md) (slug: `remove-lines-containing`, category: Text · Modification, cost: 1cr) — Keep or remove lines matching a text, word, prefix, suffix, or regex pattern. - [Remove Punctuation](https://api.miniwebtool.com/tools/remove-punctuation.md) (slug: `remove-punctuation`, category: Text · Modification, cost: 1cr) — Remove or replace selected punctuation categories from text. - [Reverse Text](https://api.miniwebtool.com/tools/reverse-text.md) (slug: `reverse-text`, category: Text · Modification, cost: 1cr) — Reverse whole text, word order, each word, or line order. - [Sort Lines Alphabetically](https://api.miniwebtool.com/tools/sort-lines-alphabetically.md) (slug: `sort-lines-alphabetically`, category: Text · Sorting, cost: 1cr) — Sort text lines alphabetically, naturally, numerically, or by length. - [CSV to SRT Converter](https://api.miniwebtool.com/tools/csv-to-srt.md) (slug: `csv-to-srt`, category: Text · Subtitles, cost: 1cr) — Convert CSV subtitle rows with start, end, and text columns to SRT. - [Word to Phone Number Converter](https://api.miniwebtool.com/tools/word-to-phone-number-converter.md) (slug: `word-to-phone-number-converter`, category: Text · Text Conversion, cost: 1cr) — Convert words and phrases into T9 keypad phone numbers. - [Text Repeat](https://api.miniwebtool.com/tools/text-repeat.md) (slug: `text-repeat`, category: Text · Text Modification, cost: 1cr) — Repeat text multiple times with separators, numbering, and case options. - [Upside Down Text Generator](https://api.miniwebtool.com/tools/upside-down-text-generator.md) (slug: `upside-down-text-generator`, category: Text · Text Modification, cost: 1cr) — Flip text upside down using Unicode character mappings. - [Word Frequency Analyzer](https://api.miniwebtool.com/tools/word-frequency-analyzer.md) (slug: `word-frequency-analyzer`, category: Text · Text Statistics, cost: 1cr) — Analyze word frequency, unique words, lexical diversity, and CSV output. - [Remove Empty Lines](https://api.miniwebtool.com/tools/remove-empty-lines.md) (slug: `remove-empty-lines`, category: Text · Whitespace, cost: 1cr) — Remove blank or whitespace-only lines from text and report line reduction statistics. - [Remove Leading Trailing Spaces](https://api.miniwebtool.com/tools/remove-leading-trailing-spaces.md) (slug: `remove-leading-trailing-spaces`, category: Text · Whitespace, cost: 1cr) — Trim leading and trailing spaces or tabs from each line. - [Remove Spaces](https://api.miniwebtool.com/tools/remove-spaces.md) (slug: `remove-spaces`, category: Text · Whitespace, cost: 1cr) — Strip whitespace: all, extra, leading, trailing, or per-line. - [When Is Leap Year](https://api.miniwebtool.com/tools/when-is-leap-year.md) (slug: `when-is-leap-year`, category: Time-Date · Calendar, cost: 1cr) — Check leap-year status and nearby leap years using Gregorian rules. - [Date Calculator](https://api.miniwebtool.com/tools/date-calculator.md) (slug: `date-calculator`, category: Time-Date · Date Tools, cost: 1cr) — Add or subtract years, months, weeks, and days from a date. - [Date Difference Calculator](https://api.miniwebtool.com/tools/date-difference-calculator.md) (slug: `date-difference-calculator`, category: Time-Date · Date Tools, cost: 1cr) — Calculate days, weeks, approximate months/years, and business days between two dates. - [Time Between Two Dates](https://api.miniwebtool.com/tools/time-between-two-dates.md) (slug: `time-between-two-dates`, category: Time-Date · Date Tools, cost: 1cr) — Calculate exact elapsed time between two ISO datetimes. - [Winter Solstice Day](https://api.miniwebtool.com/tools/winter-solstice-day.md) (slug: `winter-solstice-day`, category: Time-Date · Season, cost: 1cr) — Return winter solstice date/time for Northern or Southern Hemisphere, 2024-2030. - [Time Duration Calculator](https://api.miniwebtool.com/tools/time-duration-calculator.md) (slug: `time-duration-calculator`, category: Time-Date · Time Calculators, cost: 1cr) — Calculate elapsed time between two times or datetimes. - [Time to Decimal Converter](https://api.miniwebtool.com/tools/time-to-decimal-converter.md) (slug: `time-to-decimal-converter`, category: Time-Date · Time Calculators, cost: 1cr) — Convert between hours/minutes/seconds and decimal hours. - [Work Hours Calculator](https://api.miniwebtool.com/tools/work-hours-calculator.md) (slug: `work-hours-calculator`, category: Time-Date · Time Calculators, cost: 1cr) — Calculate weekly work hours, overtime, and optional pay from day entries. - [Unix Time Converter](https://api.miniwebtool.com/tools/unix-time-converter.md) (slug: `unix-time-converter`, category: Time-Date · Time Conversion, cost: 1cr) — Convert between Unix timestamps and UTC ISO datetimes. - [CPC Calculator](https://api.miniwebtool.com/tools/cpc-calculator.md) (slug: `cpc-calculator`, category: Webmaster · Advertising, cost: 1cr) — Calculate CPC, CPM, or CTR from two known campaign metrics. - [CPM Calculator](https://api.miniwebtool.com/tools/cpm-calculator.md) (slug: `cpm-calculator`, category: Webmaster · Advertising, cost: 1cr) — Calculate campaign cost, CPM, or impressions from two known advertising metrics. - [Value of A Visitor Calculator](https://api.miniwebtool.com/tools/value-of-a-visitor-calculator.md) (slug: `value-of-a-visitor-calculator`, category: Webmaster · Analytics, cost: 2cr) — Calculate website visitor value, conversion rate, annualized revenue, and traffic ROI. - [CSS Box Shadow Generator](https://api.miniwebtool.com/tools/css-box-shadow-generator.md) (slug: `css-box-shadow-generator`, category: Webmaster · Css, cost: 1cr) — Generate a CSS box-shadow declaration from numeric shadow controls. - [CSS Compressor](https://api.miniwebtool.com/tools/css-compressor.md) (slug: `css-compressor`, category: Webmaster · Css, cost: 1cr) — Minify CSS and return compression statistics. - [JSON String Escape/Unescape](https://api.miniwebtool.com/tools/json-string-escape-unescape.md) (slug: `json-string-escape-unescape`, category: Webmaster · Encoding, cost: 1cr) — Escape or unescape JSON string content deterministically. - [IP Address to Binary Converter](https://api.miniwebtool.com/tools/ip-address-to-binary-converter.md) (slug: `ip-address-to-binary-converter`, category: Webmaster · Ip, cost: 1cr) — Convert IPv4 or IPv6 addresses to padded binary forms. - [URL Slug Generator](https://api.miniwebtool.com/tools/url-slug-generator.md) (slug: `url-slug-generator`, category: Webmaster · Seo, cost: 1cr) — Generate an SEO-friendly URL slug from a title or phrase. ## Using from an agent Connect to https://api.miniwebtool.com/v1/mcp over the Model Context Protocol (JSON-RPC 2.0 over HTTP). Every endpoint in the catalog is exposed as an MCP tool with the same inputSchema it has in OpenAPI. ## License The API is a commercial service. Calling it requires an API key and is governed by the usage terms. Scraping / redistribution of the catalog is not permitted without a plan.