Unit converters
Converters, calculators, PDFs, images and everyday utilities. Choose a tool, check its processing notice, and get started without an account.
Length converter
Convert metric and imperial lengths using fixed unit definitions.
Unit convertersWeight & mass converter
Convert kilograms, pounds, ounces and metric mass units.
Unit convertersTemperature converter
Convert Celsius, Fahrenheit and Kelvin with absolute-zero validation.
Unit convertersArea converter
Convert square metres, square feet, hectares and acres.
Unit convertersVolume converter
Convert litres and other volumes, keeping US and imperial gallons distinct.
Unit convertersSpeed converter
Convert kilometres per hour, miles per hour, metres per second and knots.
Unit convertersDigital storage converter
Distinguish decimal kB/MB/GB from binary KiB/MiB/GiB and bits.
Unit convertersTime unit converter
Convert seconds, minutes, hours, fixed 24-hour days and seven-day weeks.
Unit convertersEnergy converter
Convert joules, watt-hours and thermochemical kilocalories.
Unit convertersPower converter
Convert watts, kilowatts, megawatts and mechanical horsepower.
Unit convertersPressure converter
Convert pascals, kilopascals, bars, PSI and standard atmospheres.
Unit convertersAngle converter
Convert degrees, radians and complete turns for geometry and design.
Unit convertersFuel economy converter
Convert L/100 km, km/L, US mpg and UK mpg without confusing gallon definitions.
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