For the complete documentation index, see llms.txt.
17 endpoints

Conversion API

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.

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Area
Square Feet to Square Meters Convertersquare-feet-to-square-meters
Convert square feet and square meters with exact international-foot conversion.
1cr · v2026-04-22
Cooking
Quarts to Cups Converterquarts-to-cups-converter
Convert US customary quarts and cups in either direction.
1cr · v2026-04-22
Fuel
Fuel Efficiency Converterfuel-efficiency-converter-mpg-l-100km-km-l
Convert MPG, L/100km, km/L, and miles/L fuel-efficiency values.
1cr · v2026-04-22
Length
Centimeters to Feet and Inches Convertercm-to-feet-and-inches-converter
Convert centimeters to normalized feet and inches, or convert feet and inches to centimeters.
1cr · v2026-04-22
Media
FPS Converterfps-converter
Convert between frame counts, duration and timecode at a given frame rate.
1cr · v2026-04-22
Pressure
Pressure Converterpressure-converter
Convert pressure among pascals, kilopascals, megapascals, bar, PSI and standard atmospheres.
1cr · v2026-04-22
PSI to Bar Converterpsi-to-bar-converter
Convert pressure between pounds per square inch and bar.
1cr · v2026-04-22
Scale
Scale Model Conversion Calculatorscale-model-conversion-calculator
Convert a length from one model scale to another.
1cr · v2026-04-22
Size
Shoe Size Convertershoe-size-converter
Estimate equivalent shoe sizes across US men's, US women's, UK, EU and centimeter systems.
1cr · v2026-04-22
Speed
Knots to MPH Converterknots-to-mph-converter
Convert speed between nautical knots and miles per hour.
1cr · v2026-04-22
MPH to KMH Convertermph-to-kmh-kmh-to-mph
Convert miles per hour and kilometers per hour in either direction.
1cr · v2026-04-22
Speed Converterspeed-converter
Convert speed among meters per second, kilometers per hour, miles per hour, knots and feet per second.
1cr · v2026-04-22
Temperature
Temperature Convertertemperature-converter
Convert temperatures among Celsius, Fahrenheit and Kelvin.
1cr · v2026-04-22
Unit Converters
Volume Convertervolume-converter
Convert volume among metric, US customary, cooking, and cubic units.
1cr · v2026-04-22
Weight (Mass) Converterweight-converter
Convert mass among metric, imperial, ton, stone, and carat units.
1cr · v2026-04-22
Volume
Cubic Feet to Cubic Yards Convertercubic-feet-to-cubic-yards
Convert cubic feet and cubic yards and optionally add material waste and order rounding.
1cr · v2026-04-22
Weight
Pounds to Kilograms Converterlbs-to-kg-converter
Convert mass between pounds and kilograms using the international avoirdupois pound.
1cr · v2026-04-22