13 tools · 100% in your browser

Units

Free unit converters for length, weight, temperature, volume, area, speed, energy, power, pressure, time, data size and more — instant conversions for metric…

Common· 4 tools

Everyday units — length, weight, temperature and volume.

Length Converter

Convert meters, feet, miles, inches and more — instantly.

Weight Converter

Convert kg, lb, oz, stones and tonnes instantly.

Temperature Converter

Convert Celsius, Fahrenheit, Kelvin and Rankine.

Volume Converter

Liters, gallons, cups, fl oz, pints and more.

Motion· 4 tools

Speed, time, frequency and angle conversions.

Speed Converter

km/h, mph, m/s, knots and feet per second.

Time Duration Converter

Convert seconds, minutes, hours, days, weeks, years.

Angle Converter

Convert degrees, radians, gradians and turns.

Frequency Converter

Hz, kHz, MHz, GHz, RPM and BPM.

Engineering· 4 tools

Area, energy, power and pressure for technical work.

Area Converter

Square meters, feet, acres, hectares and more.

Energy Converter

Joules, kWh, calories, BTU, electronvolts.

Power Converter

Watts, kilowatts, horsepower, BTU/h.

Pressure Converter

Pascals, bar, psi, atmospheres, mmHg, torr.

Digital· 1 tools

Bytes, kilobytes, megabytes and beyond.

Data Size Converter

Bytes, KB, MB, GB, TB, PB — decimal and binary.