Unit Converters

Convert men's and women's shoe sizes between US, UK, EU and centimeters, plus the men's ↔ women's equivalent — with the full size chart.

Convert clothing sizes between US, UK, EU and Italian sizing — women's dresses and tops, men's shirts (collar) and men's suits and jackets — with S/M/L letters.

Convert between centimeters, inches, feet, meters, kilometers, miles and more — with a full table of every unit.

Convert kilograms, pounds, ounces, grams, stones, tons and tola instantly, with every unit shown side by side.

Convert Celsius, Fahrenheit, Kelvin and Rankine accurately, including negative temperatures.

Convert square feet, square meters, acres, hectares, marla and kanal — handy for plots, rooms and land.

Convert liters, milliliters, US and UK gallons, cups, fluid ounces, cubic feet and more.

Convert km/h, mph, meters per second, knots and feet per second.

Convert bits, bytes, KB, MB, GB and TB — in both decimal (1000) and binary (1024, KiB/MiB/GiB) units.

Convert internet and transfer speeds between Mbps, Gbps, MB/s and more — see what a connection speed means in file terms.

Convert seconds, minutes, hours, days, weeks, months and years, including milliseconds and microseconds.

Convert psi, bar, kPa, atmospheres, mmHg and inHg — for tires, weather, gauges and science.

Convert joules, calories, kilocalories, kWh, BTU, electronvolts and therms.

Convert watts, kilowatts, horsepower (mechanical and metric), BTU per hour and refrigeration tons.

Convert hertz, kilohertz, megahertz, gigahertz and revolutions per minute (RPM).

Convert degrees, radians, gradians, arcminutes, arcseconds and turns.

Convert between km/L, US mpg, UK mpg and L/100 km — including the inverse L/100 km scale used in Europe.

Convert sieverts, millisieverts, microsieverts, rem and millirem for radiation dose equivalents.

Convert kg/m³, g/cm³, g/mL, kg/L, lb/ft³ and lb/in³.

Convert newton-meters, pound-feet, pound-inches and kilogram-force meters for bolts, engines and tools.

Convert newtons, kilonewtons, pound-force, kilogram-force and dynes.