> For the complete documentation index, see [llms.txt](/llms.txt).
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- finance
191 endpoints

# Finance API

Exact interest, mortgage, APY, and other money math. Same bearer token, same credit pool, same JSON envelope as every other endpoint — drop them into apps, sites, workflows, or agents without rebuilding formulas, validation, or docs.
[Start free →](/billing/checkout/?plan=free) [View OpenAPI](/v1/docs) [All categories](/tools/)
Accounting
[
Depreciation Calculator depreciation-calculator
Generate straight-line or declining-balance depreciation schedules with chart-ready book values.
1cr · v2026-04-22
](/tools/depreciation-calculator/)
Auto
[
Car Depreciation Calculator car-depreciation-calculator
Estimate vehicle depreciation using a declining-balance annual rate.
2cr · v2026-04-22
](/tools/car-depreciation-calculator/) [
Car Lease Calculator car-lease-calculator
Estimate monthly auto lease payment from cap cost, residual value, money factor, tax, and fees.
2cr · v2026-04-22
](/tools/car-lease-calculator/)
Bills
[
Tip Calculator tip-calculator
Calculate tip, tax, total bill, split amounts, and chart-ready bill breakdown.
1cr · v2026-04-22
](/tools/tip-calculator/)
Bonds
[
Bond Convexity Calculator bond-convexity-calculator
Calculate bond price, duration, convexity, and a second-order yield-shock estimate.
2cr · v2026-04-22
](/tools/bond-convexity-calculator/) [
Bond Duration Calculator bond-duration-calculator-macaulay-modified
Calculate Macaulay and modified duration, DV01, and exact versus estimated repricing.
2cr · v2026-04-22
](/tools/bond-duration-calculator-macaulay-modified/) [
Bond Equivalent Yield Calculator bond-equivalent-yield-calculator
Calculate bond equivalent yield for a discount security.
2cr · v2026-04-22
](/tools/bond-equivalent-yield-calculator/) [
Bond Yield to Maturity Calculator bond-yield-to-maturity-calculator
Calculate bond yield to maturity with current yield and return metrics.
2cr · v2026-04-22
](/tools/bond-yield-to-maturity-calculator/) [
Treasury Inflation-Protected Securities (TIPS) Calculator treasury-inflation-protected-securities-tips-calculator
Inflation-adjusted principal, growing coupons and the deflation floor for a TIPS holding.
2cr · v2026-04-22
](/tools/treasury-inflation-protected-securities-tips-calculator/) [
Zero Coupon Bond Calculator zero-coupon-bond-calculator
Calculate zero coupon bond price or yield to maturity.
2cr · v2026-04-22
](/tools/zero-coupon-bond-calculator/)
Cash Flow
[
Cash Flow Calculator cash-flow-calculator
Calculate net cash flow, ending cash, and optional month-by-month cash balance.
1cr · v2026-04-22
](/tools/cash-flow-calculator/)
Coverage
[
Debt Service Coverage Ratio Calculator debt-service-coverage-ratio-calculator
Calculate DSCR and cash flow after annual debt service.
1cr · v2026-04-22
](/tools/debt-service-coverage-ratio-calculator/)
Credit
[
Credit Card Interest Calculator credit-card-interest-calculator
Estimate credit card payoff time, interest cost, and payment strategy savings.
2cr · v2026-04-22
](/tools/credit-card-interest-calculator/)
Credit Card Calculators
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Credit Card Payment Calculator credit-card-payment-calculator
Calculate the fixed monthly payment needed to pay off a credit card balance over a chosen number of months.
1cr · v2026-04-22
](/tools/credit-card-payment-calculator/) [
Credit Card Payoff Calculator credit-card-payoff-calculator
Estimate how long a credit card payoff plan will take and how much interest it costs.
1cr · v2026-04-22
](/tools/credit-card-payoff-calculator/) [
Credit Utilization Calculator credit-utilization-calculator
Per-card and overall credit utilization with score-band ratings and pay-down targets to reach 30 and 10 percent.
2cr · v2026-04-22
](/tools/credit-utilization-calculator/)
Crypto
[
Bitcoin Investment Calculator bitcoin-investment-calculator
Project Bitcoin holdings, target value, profit, ROI, CAGR, and benchmark values.
2cr · v2026-04-22
](/tools/bitcoin-investment-calculator/) [
Crypto Arbitrage Calculator crypto-arbitrage-calculator
Estimate cross-exchange crypto arbitrage profit after trading, withdrawal, and network fees.
2cr · v2026-04-22
](/tools/crypto-arbitrage-calculator/) [
Crypto Leverage Calculator crypto-leverage-calculator
Estimate leveraged crypto position size, liquidation price, P/L, ROI, and price scenarios.
2cr · v2026-04-22
](/tools/crypto-leverage-calculator/) [
Crypto Profit/Loss Calculator crypto-profit-loss-calculator
Calculate crypto trade profit, ROI, transaction fees, and break-even price.
2cr · v2026-04-22
](/tools/crypto-profit-loss-calculator/)
Debt
[
Debt Consolidation Calculator debt-consolidation-calculator
Estimate a consolidated debt payment and interest cost.
2cr · v2026-04-22
](/tools/debt-consolidation-calculator/) [
Debt Coverage Ratio Calculator debt-coverage-ratio-calculator
Calculate debt service coverage ratio from NOI and debt service, or build NOI from property inputs.
2cr · v2026-04-22
](/tools/debt-coverage-ratio-calculator/) [
Debt to Income Ratio Calculator debt-to-income-ratio-calculator
Calculate debt-to-income ratio from monthly income and debt payments.
2cr · v2026-04-22
](/tools/debt-to-income-ratio-calculator/) [
Fixed Charge Coverage Ratio Calculator fixed-charge-coverage-ratio-calculator
Calculate fixed charge coverage ratio with optional EBITDA and principal-payment adjustments.
2cr · v2026-04-22
](/tools/fixed-charge-coverage-ratio-calculator/) [
Interest Coverage Ratio Calculator interest-coverage-ratio-calculator
Calculate EBIT or EBITDA based interest coverage ratio.
2cr · v2026-04-22
](/tools/interest-coverage-ratio-calculator/) [
Times Interest Earned Ratio Calculator times-interest-earned-ratio-calculator
Calculate times interest earned ratio and interest coverage safety margin.
2cr · v2026-04-22
](/tools/times-interest-earned-ratio-calculator/)
Debt Calculators
[
Debt Payoff Calculator debt-payoff-calculator
Compare debt snowball and avalanche payoff strategies for a small list of debts.
1cr · v2026-04-22
](/tools/debt-payoff-calculator/)
Depreciation
[
Actual Cash Value Calculator actual-cash-value-calculator
Calculate actual cash value from replacement cost, age, lifespan, salvage, and depreciation method.
1cr · v2026-04-22
](/tools/actual-cash-value-calculator/)
Discounts
[
Discount Calculator discount-calculator
Calculate final price, savings, tax, stacked discounts, or BOGO deals.
1cr · v2026-04-22
](/tools/discount-calculator/) [
Percent Off Calculator percent-off-calculator
Calculate discount amount and sale price from original price and percent off.
1cr · v2026-04-22
](/tools/percent-off-calculator/) [
Sale Price Calculator sale-price-calculator
Calculate discounted sale price, tax, final price, and chart-ready price breakdown.
1cr · v2026-04-22
](/tools/sale-price-calculator/)
Ecommerce
[
Amazon FBA Calculator amazon-fba-calculator
Estimate Amazon referral, fulfillment, and storage fees from category, dimensions, and weight.
2cr · v2026-04-22
](/tools/amazon-fba-calculator/) [
eBay Fee Calculator ebay-fee-calculator
Estimate eBay final-value, order, promoted, and insertion fees plus net margin and target price.
2cr · v2026-04-22
](/tools/ebay-fee-calculator/)
Efficiency
[
Average Collection Period Calculator average-collection-period-calculator
Calculate average collection period, receivables turnover, and industry benchmark spread.
2cr · v2026-04-22
](/tools/average-collection-period-calculator/) [
Debtor Days Calculator debtor-days-calculator
Calculate debtor days, receivables ratio, and working capital above a 30-day target.
2cr · v2026-04-22
](/tools/debtor-days-calculator/) [
Fixed Asset Turnover Calculator fixed-asset-turnover-calculator
Measure revenue generated per dollar of net fixed assets.
2cr · v2026-04-22
](/tools/fixed-asset-turnover-calculator/) [
Inventory Turnover Calculator inventory-turnover-calculator
Calculate inventory turnover, days sales in inventory, and annualized turnover.
2cr · v2026-04-22
](/tools/inventory-turnover-calculator/) [
Inventory Turnover Ratio Calculator inventory-turnover-ratio-calculator
Calculate inventory turnover ratio and days inventory outstanding.
1cr · v2026-04-22
](/tools/inventory-turnover-ratio-calculator/) [
Receivables Turnover Ratio Calculator receivables-turnover-ratio-calculator
Calculate receivables turnover and days sales outstanding.
2cr · v2026-04-22
](/tools/receivables-turnover-ratio-calculator/) [
Total Asset Turnover Calculator total-asset-turnover-calculator
Measure revenue generated per dollar of average total assets.
2cr · v2026-04-22
](/tools/total-asset-turnover-calculator/)
Everyday Calculators
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Pizza Value Calculator pizza-value-calculator
Compare two pizzas by area, price per area, slice value, and savings percentage.
1cr · v2026-04-22
](/tools/pizza-value-calculator/)
Financial Ratio
[
Goodwill to Assets Ratio Calculator goodwill-to-assets-ratio-calculator
Calculate goodwill-to-assets ratio and tangible asset share.
2cr · v2026-04-22
](/tools/goodwill-to-assets-ratio-calculator/) [
Retention Ratio Calculator retention-ratio-calculator
Calculate retention ratio, payout ratio, and retained earnings.
2cr · v2026-04-22
](/tools/retention-ratio-calculator/)
Housing
[
Home Affordability Calculator home-affordability-calculator
Maximum home price under the 28/36 rule with the full escrow breakdown and DTI ratios.
2cr · v2026-04-22
](/tools/home-affordability-calculator/) [
Rent Affordability Calculator rent-affordability-calculator
Estimate affordable monthly rent from income, debt, utilities, and rent budget percent.
1cr · v2026-04-22
](/tools/rent-affordability-calculator/) [
Rent vs Buy Calculator rent-vs-buy-calculator
Year-by-year wealth comparison of renting and investing versus buying, with the breakeven year.
2cr · v2026-04-22
](/tools/rent-vs-buy-calculator/)
Interest
[
APR Calculator apr-calculator
Calculate true APR from loan amount, rolled-in fees, nominal rate, and term.
2cr · v2026-04-22
](/tools/apr-calculator/) [
APR to APY Calculator apr-to-apy-calculator
Convert APR to APY for a selected compounding frequency.
2cr · v2026-04-22
](/tools/apr-to-apy-calculator/) [
APY Calculator apy-calculator
Calculate annual percentage yield and compound growth.
2cr · v2026-04-22
](/tools/apy-calculator/) [
APY to APR Calculator apy-to-apr-calculator
Convert APY back to nominal APR for a compounding frequency.
2cr · v2026-04-22
](/tools/apy-to-apr-calculator/) [
Compound Daily Interest Calculator compound-daily-interest-calculator
Daily compounding growth of a trading account vs linear gains, with doubling time, milestones, and target days.
2cr · v2026-04-22
](/tools/compound-daily-interest-calculator/) [
Compound Interest Calculator compound-interest-calculator
Compound-interest formula with selectable compounding frequency.
2cr · v2026-04-22
](/tools/compound-interest-calculator/) [
Continuous Compounding Calculator continuous-compounding-calculator
Calculate future value and interest with continuous compounding.
1cr · v2026-04-22
](/tools/continuous-compounding-calculator/) [
Doubling Time Calculator doubling-time-calculator
Calculate exact doubling time, Rule of 72 estimates, or the rate required to double.
1cr · v2026-04-22
](/tools/doubling-time-calculator/) [
Effective Interest Rate Calculator effective-interest-rate-calculator
Convert a nominal interest rate to its effective annual rate.
2cr · v2026-04-22
](/tools/effective-interest-rate-calculator/) [
Effective Yield Calculator effective-yield-calculator
Calculate effective annual yield from nominal APR and compounding frequency.
2cr · v2026-04-22
](/tools/effective-yield-calculator/) [
Forward Rate Calculator forward-rate-calculator
Implied forward rates from a spot curve, as a full matrix plus the consecutive forward curve and shape diagnosis.
2cr · v2026-04-22
](/tools/forward-rate-calculator/) [
Interest Rate Calculator interest-rate-calculator
Solve the implied annual interest rate from principal, term, and monthly payment.
2cr · v2026-04-22
](/tools/interest-rate-calculator/) [
Nominal Interest Rate Calculator nominal-interest-rate-calculator
Convert an effective annual rate to a nominal annual rate.
2cr · v2026-04-22
](/tools/nominal-interest-rate-calculator/) [
Rule of 72 Calculator rule-of-72-calculator
Estimate investment doubling time with the Rule of 72 and exact compound formula.
1cr · v2026-04-22
](/tools/rule-of-72-calculator/) [
Simple Interest Calculator simple-interest-calculator
Simple-interest formula: I = P * r * t.
2cr · v2026-04-22
](/tools/simple-interest-calculator/)
Investing
[
CAPM Calculator capm-calculator
Solve the Capital Asset Pricing Model for expected return, risk-free rate, market return, or beta.
2cr · v2026-04-22
](/tools/capm-calculator/) [
Dollar Cost Averaging Calculator dollar-cost-averaging-calculator
Simulate portfolio growth from regular periodic investments with compounding returns.
2cr · v2026-04-22
](/tools/dollar-cost-averaging-calculator/) [
ESPP Calculator espp-calculator
Estimate ESPP shares, lookback discount, sale proceeds, taxes, and after-tax return.
2cr · v2026-04-22
](/tools/espp-calculator/) [
Holding Period Return Calculator holding-period-return-calculator
Holding period return with income and capital-gains yield split, return multiple, and optional annualized return.
2cr · v2026-04-22
](/tools/holding-period-return-calculator/) [
IRR Calculator irr-calculator
Internal rate of return solved by bisection for uniform or variable cash flows, with rating and profit summary.
2cr · v2026-04-22
](/tools/irr-calculator/) [
NPV Calculator npv-calculator
Net present value with IRR, profitability index, payback periods, decision guidance, and rate sensitivity.
2cr · v2026-04-22
](/tools/npv-calculator/) [
Real Rate of Return Calculator real-rate-of-return-calculator
Inflation-adjusted real return via the Fisher equation, vs the simple approximation, with optional projection.
2cr · v2026-04-22
](/tools/real-rate-of-return-calculator/) [
Sharpe Ratio Calculator sharpe-ratio-calculator
Sharpe ratio from summary statistics or a series of periodic returns (annualized), with performance rating.
2cr · v2026-04-22
](/tools/sharpe-ratio-calculator/) [
SIP Calculator sip-calculator
Systematic investment plan projection with optional annual step-up and initial lump sum, month-by-month compounding.
2cr · v2026-04-22
](/tools/sip-calculator/) [
Stock Average Calculator stock-average-calculator
Average cost per share after buying more shares, with breakeven price and optional profit/loss at the current price.
2cr · v2026-04-22
](/tools/stock-average-calculator/) [
Stock Profit Loss Calculator stock-profit-loss-calculator
Calculate stock trade profit, loss, ROI, and breakeven price.
2cr · v2026-04-22
](/tools/stock-profit-loss-calculator/) [
Stock Split Calculator stock-split-calculator
Post-split shares, price, cost basis, and fractional-share handling for forward and reverse stock splits.
2cr · v2026-04-22
](/tools/stock-split-calculator/)
Investment
[
Capital Employed Calculator capital-employed-calculator
Calculate capital employed by common balance-sheet methods and optional ROCE.
2cr · v2026-04-22
](/tools/capital-employed-calculator/) [
WACC Calculator wacc-calculator
Calculate weighted average cost of capital and component contributions.
1cr · v2026-04-22
](/tools/wacc-calculator/)
Leverage
[
Debt to Asset Ratio Calculator debt-to-asset-ratio-calculator
Calculate debt-to-asset ratio, equity ratio, and optional industry benchmark spread.
2cr · v2026-04-22
](/tools/debt-to-asset-ratio-calculator/) [
Debt to Equity Ratio Calculator debt-to-equity-ratio-calculator
Calculate debt-to-equity ratio, equity multiplier, and capital structure shares.
2cr · v2026-04-22
](/tools/debt-to-equity-ratio-calculator/) [
Equity Ratio Calculator equity-ratio-calculator
Calculate equity ratio, debt ratio, equity multiplier, and industry benchmark spread.
2cr · v2026-04-22
](/tools/equity-ratio-calculator/)
Liquidity
[
Cash Ratio Calculator cash-ratio-calculator
Calculate cash ratio from cash, marketable securities, and current liabilities.
2cr · v2026-04-22
](/tools/cash-ratio-calculator/) [
Current Ratio Calculator current-ratio-calculator
Calculate current ratio and working capital from current assets and liabilities.
2cr · v2026-04-22
](/tools/current-ratio-calculator/) [
Loan to Deposit Ratio Calculator loan-to-deposit-ratio-calculator
Calculate bank loan-to-deposit ratio, deposit coverage, and liquidity status.
2cr · v2026-04-22
](/tools/loan-to-deposit-ratio-calculator/) [
Quick Ratio Calculator quick-ratio-calculator
Calculate quick ratio, quick assets, current ratio, and liquidity rating.
2cr · v2026-04-22
](/tools/quick-ratio-calculator/)
Loan Calculators
[
Amortization Calculator amortization-calculator
Calculate loan payment, interest, payoff timing, and savings from extra monthly principal.
1cr · v2026-04-22
](/tools/amortization-calculator/) [
HELOC Calculator heloc-calculator
Estimate HELOC draw-period and repayment-period payments, interest cost, and combined loan-to-value.
1cr · v2026-04-22
](/tools/heloc-calculator/)
Loans
[
ARM Mortgage Calculator arm-mortgage-calculator
Worst-case payment path of an adjustable-rate mortgage under its initial, periodic, and lifetime caps.
2cr · v2026-04-22
](/tools/arm-mortgage-calculator/) [
Auto Loan Calculator auto-loan-calculator
Calculate auto loan amount, monthly payment, tax, and total interest.
2cr · v2026-04-22
](/tools/auto-loan-calculator/) [
Balloon Loan Calculator balloon-loan-calculator
Monthly payment and final balloon payment for amortized or interest-only balloon loans.
2cr · v2026-04-22
](/tools/balloon-loan-calculator/) [
Biweekly Mortgage Payment Calculator biweekly-mortgage-payment-calculator
Biweekly versus monthly mortgage payments with interest saved and time cut from the term.
2cr · v2026-04-22
](/tools/biweekly-mortgage-payment-calculator/) [
Business Loan Calculator business-loan-calculator
Estimate business loan payments, fees, payoff time, and interest.
2cr · v2026-04-22
](/tools/business-loan-calculator/) [
Car Affordability Calculator car-affordability-calculator
Maximum affordable car price under the 20/4/10 rule with the binding constraint identified.
2cr · v2026-04-22
](/tools/car-affordability-calculator/) [
Car Loan Payoff Calculator car-loan-payoff-calculator
Compare standard and accelerated payoff for a car loan.
2cr · v2026-04-22
](/tools/car-loan-payoff-calculator/) [
Down Payment Calculator down-payment-calculator
Estimate mortgage down payment, loan amount, monthly payment, PMI, and comparison scenarios.
2cr · v2026-04-22
](/tools/down-payment-calculator/) [
EMI Calculator emi-calculator
Calculate equated monthly installment and total interest for a loan.
2cr · v2026-04-22
](/tools/emi-calculator/) [
FHA Loan Calculator fha-loan-calculator
FHA payment with upfront and annual mortgage insurance premiums from the HUD MIP schedule.
2cr · v2026-04-22
](/tools/fha-loan-calculator/) [
Interest-Only Mortgage Calculator interest-only-mortgage-calculator
Interest-only payment, the payment jump when the IO period ends, and the extra interest versus a standard loan.
2cr · v2026-04-22
](/tools/interest-only-mortgage-calculator/) [
Loan Payoff Calculator loan-payoff-calculator
Calculate loan payoff months and savings from extra monthly payments.
2cr · v2026-04-22
](/tools/loan-payoff-calculator/) [
Mortgage Calculator mortgage-calculator
Monthly payment, total interest, LTV, and optional amortization schedule.
5cr · v2026-04-22
](/tools/mortgage-calculator/) [
Mortgage Payoff Calculator mortgage-payoff-calculator
Early mortgage payoff simulation with extra monthly, yearly, and one-time payments; time and interest saved.
2cr · v2026-04-22
](/tools/mortgage-payoff-calculator/) [
Mortgage Recast Calculator mortgage-recast-calculator
New payment after a lump-sum recast, versus prepaying without recasting.
2cr · v2026-04-22
](/tools/mortgage-recast-calculator/) [
Personal Loan Calculator personal-loan-calculator
Calculate personal loan payment, payoff time, interest, and extra-payment savings.
2cr · v2026-04-22
](/tools/personal-loan-calculator/) [
VA Loan Calculator va-loan-calculator
VA loan payment with the funding fee by use type and down payment, financed or paid at closing.
2cr · v2026-04-22
](/tools/va-loan-calculator/)
Marketing
[
ROAS Calculator roas-calculator
Calculate return on ad spend, profit, ROI, or target revenue.
2cr · v2026-04-22
](/tools/roas-calculator/)
Mortgage
[
Mortgage Comparison Calculator mortgage-comparison-calculator
Compare two to four fixed-rate mortgages by payment, total interest, total cost, and annual amortization.
2cr · v2026-04-22
](/tools/mortgage-comparison-calculator/)
Options
[
Black-Scholes Calculator black-scholes-calculator
Price European call and put options with dividend-adjusted Black-Scholes and full Greeks.
2cr · v2026-04-22
](/tools/black-scholes-calculator/) [
Options Profit Calculator options-profit-calculator
Calculate long call or put break-even, maximum risk, expiration P/L, and payoff curve.
2cr · v2026-04-22
](/tools/options-profit-calculator/)
Payroll
[
Time Card Calculator time-card-calculator
Calculate regular hours, overtime hours, gross pay, and daily hour chart data.
1cr · v2026-04-22
](/tools/time-card-calculator/)
Planning
[
Budget Calculator budget-calculator
Allocate income into needs, wants, and savings using the 50/30/20 budgeting rule.
2cr · v2026-04-22
](/tools/budget-calculator/) [
Cost of Raising a Child Calculator cost-of-raising-a-child-calculator
Project the cost of raising a child to 18 by spending category with income tier, siblings, inflation, and optional college.
2cr · v2026-04-22
](/tools/cost-of-raising-a-child-calculator/) [
Emergency Fund Calculator emergency-fund-calculator
Emergency fund target by employment profile and dependents, with 3/6/9/12-month tiers and time to reach each.
2cr · v2026-04-22
](/tools/emergency-fund-calculator/) [
Net Worth Calculator net-worth-calculator
Net worth from itemized assets and liabilities with debt-to-asset ratio, health rating, and milestone tracking.
2cr · v2026-04-22
](/tools/net-worth-calculator/)
Profit
[
Break-Even Calculator break-even-calculator
Calculate break-even units, revenue, contribution margin, and target-profit units.
1cr · v2026-04-22
](/tools/break-even-calculator/) [
EBIT Calculator ebit-calculator
Calculate EBIT and EBIT margin from revenue, expenses, and non-operating income.
2cr · v2026-04-22
](/tools/ebit-calculator/) [
EBITDA Calculator ebitda-calculator
Calculate EBITDA using net income or operating income inputs.
2cr · v2026-04-22
](/tools/ebitda-calculator/)
Profitability
[
Break Even Point Calculator break-even-point-calculator
Calculate break-even units, revenue, costs, and rounded-unit profit.
1cr · v2026-04-22
](/tools/break-even-point-calculator/) [
Cash Flow Margin Calculator cash-flow-margin-calculator
Calculate operating cash flow margin as a percentage of net sales.
2cr · v2026-04-22
](/tools/cash-flow-margin-calculator/) [
Earnings per Share Calculator earnings-per-share-calculator
Calculate basic, diluted, or weighted earnings per share.
2cr · v2026-04-22
](/tools/earnings-per-share-calculator/) [
EBIT Margin Calculator ebit-margin-calculator
Calculate EBIT margin and EBIT-to-revenue ratio.
2cr · v2026-04-22
](/tools/ebit-margin-calculator/) [
EBITDA Margin Calculator ebitda-margin-calculator
Calculate EBITDA margin from direct EBITDA or component inputs.
2cr · v2026-04-22
](/tools/ebitda-margin-calculator/) [
Gross Profit Margin Calculator gross-profit-margin-calculator
Calculate gross profit, gross margin, markup, and cost ratio.
2cr · v2026-04-22
](/tools/gross-profit-margin-calculator/) [
Margin Calculator margin-calculator
Calculate gross profit, margin percent, markup percent, and chart-ready revenue breakdown.
1cr · v2026-04-22
](/tools/margin-calculator/) [
Net Profit Margin Calculator net-profit-margin-calculator
Calculate net profit margin and profit per revenue dollar.
2cr · v2026-04-22
](/tools/net-profit-margin-calculator/) [
Operating Margin Calculator operating-margin-calculator
Calculate operating margin from operating income or detailed operating components.
2cr · v2026-04-22
](/tools/operating-margin-calculator/) [
Operating Profit Percentage Calculator operating-profit-percentage-calculator
Calculate operating profit percentage from operating income or a revenue cost breakdown.
2cr · v2026-04-22
](/tools/operating-profit-percentage-calculator/) [
Profit Calculator profit-calculator
Solve profit, margin, markup, revenue, or cost from the known values.
2cr · v2026-04-22
](/tools/profit-calculator/) [
Profit to Sales Ratio Calculator profit-to-sales-ratio-calculator
Calculate profit-to-sales ratio and compare it with an industry benchmark.
2cr · v2026-04-22
](/tools/profit-to-sales-ratio-calculator/) [
Return on Assets Ratio Calculator return-on-assets-ratio-calculator
Calculate ROA with optional DuPont margin and asset-turnover breakdown.
2cr · v2026-04-22
](/tools/return-on-assets-ratio-calculator/) [
Return On Equity Calculator return-on-equity-calculator
Calculate ROE with optional 3- or 5-component DuPont analysis.
2cr · v2026-04-22
](/tools/return-on-equity-calculator/) [
Return On Sales Calculator return-on-sales-calculator
Calculate return on sales, operating cost ratio, and ROS decimal.
2cr · v2026-04-22
](/tools/return-on-sales-calculator/)
Real Estate
[
Cap Rate Calculator cap-rate-calculator
Calculate net operating income, cap rate, expense ratio, and monthly NOI.
1cr · v2026-04-22
](/tools/cap-rate-calculator/) [
Capitalization Rate Calculator capitalization-rate-calculator
Solve cap rate, property value, or required NOI for real estate income analysis.
2cr · v2026-04-22
](/tools/capitalization-rate-calculator/) [
Closing Costs Calculator closing-costs-calculator
Generic national-average estimate of home purchase or refinance closing costs by fee category.
2cr · v2026-04-22
](/tools/closing-costs-calculator/) [
Gross Rent Multiplier Calculator gross-rent-multiplier-calculator
Calculate gross rent multiplier and rental yield for a property.
2cr · v2026-04-22
](/tools/gross-rent-multiplier-calculator/) [
Home Equity Calculator home-equity-calculator
Calculate home equity, LTV, CLTV, and optional five-year equity projection.
2cr · v2026-04-22
](/tools/home-equity-calculator/) [
Loan to Cost Calculator loan-to-cost-calculator
Calculate loan-to-cost percent and equity required for a project.
1cr · v2026-04-22
](/tools/loan-to-cost-calculator/) [
Loan to Value Calculator loan-to-value-calculator
Calculate loan-to-value percent, equity, and equity percent for a property.
1cr · v2026-04-22
](/tools/loan-to-value-calculator/) [
Moving Cost Estimator moving-cost-estimator
Estimate moving costs from home size, distance, service level, and access factors.
2cr · v2026-04-22
](/tools/moving-cost-estimator/) [
Prorated Rent Calculator prorated-rent-calculator
Prorate rent for a partial month from a move date, comparing actual-days, banker's 30-day, and annual-basis methods.
2cr · v2026-04-22
](/tools/prorated-rent-calculator/) [
Real Estate Commission Calculator real-estate-commission-calculator
Calculate total real-estate commission, agent split, rate comparisons, and seller net proceeds.
2cr · v2026-04-22
](/tools/real-estate-commission-calculator/)
Real Estate Calculators
[
BRRRR Method Calculator brrrr-method-calculator
Analyze a BRRRR real estate deal, including all-in cost, refinance proceeds, capital recycled, equity, and cash flow.
1cr · v2026-04-22
](/tools/brrrr-method-calculator/) [
Cash-on-Cash Return Calculator cash-on-cash-return-calculator
Estimate rental property cash-on-cash return, cap rate, NOI, cash flow, and DSCR.
1cr · v2026-04-22
](/tools/cash-on-cash-return-calculator/) [
House Flipping Profit Calculator house-flipping-profit-calculator
Estimate house flip net profit, ROI, financing effects, and the 70 percent rule threshold.
1cr · v2026-04-22
](/tools/house-flipping-profit-calculator/) [
Housing Appreciation Calculator housing-appreciation-calculator
Calculate total home value change, annualized appreciation, and a future value projection.
1cr · v2026-04-22
](/tools/housing-appreciation-calculator/)
Retail
[
Markup Calculator markup-calculator
Calculate markup percentage, selling price, cost, profit, and margin.
1cr · v2026-04-22
](/tools/markup-calculator/)
Retirement
[
401(k) Calculator 401-k-calculator
Project 401(k) growth to retirement with employer matching, IRS contribution limits, salary raises, and year-by-year balances.
2cr · v2026-04-22
](/tools/401-k-calculator/) [
EPF Calculator epf-calculator
India Employees Provident Fund maturity corpus, splitting the employer's 12% into EPF and the EPS pension slice, with year-end interest compounding.
2cr · v2026-04-22
](/tools/epf-calculator/) [
Retirement Calculator retirement-calculator
Estimate retirement savings growth, inflation-adjusted value, and contribution breakdown.
1cr · v2026-04-22
](/tools/retirement-calculator/) [
Roth IRA Calculator roth-ira-calculator
Project Roth IRA growth with contributions, earnings, and chart-ready year-by-year data.
1cr · v2026-04-22
](/tools/roth-ira-calculator/)
Return
[
CAGR Calculator cagr-calculator
Calculate the compound annual growth rate between a beginning and ending value.
2cr · v2026-04-22
](/tools/cagr-calculator/) [
Dividend Payout Ratio Calculator dividend-payout-ratio-calculator
Calculate dividend payout ratio and retention ratio from total or per-share inputs.
2cr · v2026-04-22
](/tools/dividend-payout-ratio-calculator/) [
Dividend Yield Calculator dividend-yield-calculator
Calculate dividend yield, per-payment dividend, and optional annual income.
2cr · v2026-04-22
](/tools/dividend-yield-calculator/) [
ROI Calculator roi-calculator
Calculate ROI, annualized ROI, CAGR, and investment term from fixed dates.
2cr · v2026-04-22
](/tools/roi-calculator/) [
Tax-Equivalent Yield Calculator tax-equivalent-yield-calculator
Tax-equivalent yield of a municipal bond from federal and state marginal rates, with a bracket table.
2cr · v2026-04-22
](/tools/tax-equivalent-yield-calculator/)
Salary
[
Hourly to Salary Calculator hourly-to-salary-calculator
Convert an hourly wage to weekly, monthly, and annual salary.
2cr · v2026-04-22
](/tools/hourly-to-salary-calculator/) [
Hourly Wage Calculator hourly-wage-calculator
Convert annual salary to equivalent hourly wage.
2cr · v2026-04-22
](/tools/hourly-wage-calculator/) [
Salary Conversion Calculator salary-conversion-calculator
Convert wage amounts across hourly, daily, weekly, monthly, and annual pay periods.
2cr · v2026-04-22
](/tools/salary-conversion-calculator/) [
Salary Raise Calculator salary-raise-calculator
New salary after a raise by percent, target salary, or flat amount, with per-period breakdown and inflation-adjusted real raise.
2cr · v2026-04-22
](/tools/salary-raise-calculator/) [
Weekly Wage Calculator weekly-wage-calculator
Convert annual salary to weekly wage.
2cr · v2026-04-22
](/tools/weekly-wage-calculator/)
Sales
[
Commission Calculator commission-calculator
Calculate flat, tiered, or bonus-based sales commission.
2cr · v2026-04-22
](/tools/commission-calculator/) [
PayPal Fee Calculator paypal-fee-calculator
PayPal fee and net for a received payment, or the gross-up invoice amount needed to net a target after fees.
2cr · v2026-04-22
](/tools/paypal-fee-calculator/)
Savings
[
Compound Savings Calculator compound-savings-calculator
Project savings growth with compound interest and regular contributions.
1cr · v2026-04-22
](/tools/compound-savings-calculator/) [
Fixed Deposit Calculator fixed-deposit-calculator
Fixed deposit maturity value and interest for simple, periodic, or continuous compounding with effective annual rate.
2cr · v2026-04-22
](/tools/fixed-deposit-calculator/) [
Recurring Deposit Calculator recurring-deposit-calculator
Project recurring monthly deposits with compound interest and chart-ready balance data.
1cr · v2026-04-22
](/tools/recurring-deposit-calculator/) [
Savings Calculator savings-calculator
Project savings growth with recurring contributions and chart-ready balance data.
1cr · v2026-04-22
](/tools/savings-calculator/)
Startup
[
Burn Rate Calculator burn-rate-calculator
Calculate gross burn, net burn, and estimated runway from cash flow.
1cr · v2026-04-22
](/tools/burn-rate-calculator/) [
Runway Calculator runway-calculator
Calculate cash runway in months and chart the cash balance decline.
1cr · v2026-04-22
](/tools/runway-calculator/)
TVM
[
Future Value Calculator future-value-calculator
Calculate future value from a lump sum plus optional recurring contributions.
2cr · v2026-04-22
](/tools/future-value-calculator/) [
Future Value Factor Calculator future-value-factor-calculator
Calculate the future value factor for a rate and number of periods.
2cr · v2026-04-22
](/tools/future-value-factor-calculator/) [
Future Value of Annuity Calculator future-value-of-annuity-calculator
Calculate future value for ordinary annuities and annuities due.
2cr · v2026-04-22
](/tools/future-value-of-annuity-calculator/) [
Future Value of Annuity Due Calculator future-value-of-annuity-due-calculator
Calculate future value of an annuity due and compare it with an ordinary annuity.
2cr · v2026-04-22
](/tools/future-value-of-annuity-due-calculator/) [
Future Value of Growing Annuity Calculator future-value-of-growing-annuity-calculator
Calculate future value for payments that grow each period.
2cr · v2026-04-22
](/tools/future-value-of-growing-annuity-calculator/) [
Future Value of Lump Sum Calculator future-value-of-lump-sum-calculator
Calculate compound future value for a single lump-sum investment.
2cr · v2026-04-22
](/tools/future-value-of-lump-sum-calculator/) [
FVIFA Calculator fvifa-calculator
Calculate the future value interest factor of an annuity.
2cr · v2026-04-22
](/tools/fvifa-calculator/) [
Present Value Annuity Due Calculator present-value-annuity-due-calculator
Calculate the present value of an annuity due and compare it with an ordinary annuity.
2cr · v2026-04-22
](/tools/present-value-annuity-due-calculator/) [
Present Value of Annuity Calculator present-value-of-annuity-calculator
Calculate present value for ordinary annuities and annuities due.
2cr · v2026-04-22
](/tools/present-value-of-annuity-calculator/) [
Present Value of Lump Sum Calculator present-value-of-lump-sum-calculator
Discount a future lump sum back to present value.
2cr · v2026-04-22
](/tools/present-value-of-lump-sum-calculator/) [
PVIF Calculator pvif-calculator
Calculate the present value interest factor and discounted future value.
2cr · v2026-04-22
](/tools/pvif-calculator/) [
PVIFA Calculator pvifa-calculator
Calculate the present value interest factor of an annuity and optional present value.
2cr · v2026-04-22
](/tools/pvifa-calculator/)
Tax
[
Estate Tax Calculator estate-tax-calculator
Estimate federal estate tax from gross estate, deductions, gifts, exemption, and graduated brackets.
2cr · v2026-04-22
](/tools/estate-tax-calculator/) [
Sales Tax Calculator sales-tax-calculator
Calculate sales tax, tax-inclusive totals, pre-tax prices or an implied tax rate.
1cr · v2026-04-22
](/tools/sales-tax-calculator/) [
VAT Calculator vat-calculator
Add, remove, or extract VAT from an amount using a preset or custom rate.
2cr · v2026-04-22
](/tools/vat-calculator/)
Taxes
[
Property Tax Calculator property-tax-calculator
Annual and monthly property tax from home value, assessment ratio, tax rate (percent or mills), exemptions, and a 10-year projection.
2cr · v2026-04-22
](/tools/property-tax-calculator/) [
Tax Calculator tax-calculator
Estimate taxable income, tax, take-home income, and effective rate from user-supplied flat rates.
1cr · v2026-04-22
](/tools/tax-calculator/)
Time Value
[
Discount Factor Calculator discount-factor-calculator
Discount factor and present value for discrete or continuous compounding with a period-by-period table.
2cr · v2026-04-22
](/tools/discount-factor-calculator/) [
Present Value Calculator present-value-calculator
Discount a future value to present value with configurable compounding and chart-ready series.
1cr · v2026-04-22
](/tools/present-value-calculator/)
Trading
[
Short Selling Profit Calculator short-selling-profit-calculator
Calculate short-sale net profit after borrow fees, margin interest, and commissions.
2cr · v2026-04-22
](/tools/short-selling-profit-calculator/) [
Stop Loss Take Profit Calculator stop-loss-take-profit-calculator
Calculate stop-loss and take-profit levels, risk/reward, and risk-based position size.
2cr · v2026-04-22
](/tools/stop-loss-take-profit-calculator/)
Travel
[
Fuel Cost Calculator fuel-cost-calculator
Estimate trip fuel usage, total fuel cost, and per-person cost.
1cr · v2026-04-22
](/tools/fuel-cost-calculator/)
Valuation
[
Book Value per Share Calculator book-value-per-share-calculator
Calculate book value per share, common equity, and optional price-to-book ratio.
2cr · v2026-04-22
](/tools/book-value-per-share-calculator/) [
P/E Ratio Calculator p-e-ratio-calculator
Calculate price-to-earnings ratio, earnings yield, and sector benchmark premium.
2cr · v2026-04-22
](/tools/p-e-ratio-calculator/) [
Price to Book Ratio Calculator price-to-book-ratio-calculator
Calculate price-to-book ratio and compare it to industry benchmark ranges.
2cr · v2026-04-22
](/tools/price-to-book-ratio-calculator/)
Vehicle Costs
[
Cost Per Mile Calculator cost-per-mile-calculator
Estimate total annual driving cost and the true cost per mile from fuel and ownership costs.
1cr · v2026-04-22
](/tools/cost-per-mile-calculator/)
API OPERATIONAL v1 · OpenAPI 3.1 · MCP 2025-06-18
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