Unit Converters

Convert between metric and imperial length units: centimeters, inches, feet, meters, kilometers and miles.

Cm to inches · Mm to inches · Inches to cm

Convert weight and mass units: kilograms, pounds, grams, ounces, stone and tons.

Kg to lbs · Lbs to kg · Grams to ounces

Convert temperatures between Celsius, Fahrenheit and Kelvin with exact formulas.

Celsius to fahrenheit · Fahrenheit to celsius · Kelvin to celsius

Convert liters, gallons, cups, tablespoons, milliliters and other kitchen and volume measures.

Liters to gallons · Tablespoons to cups · Ml to oz

Convert square feet, square meters, acres and hectares.

Square feet to acres · Acres to square feet · Hectares to acres

Convert km/h, mph and knots.

Knots to mph · Kph to mph · Mph to kph

Convert seconds, minutes, hours, days and weeks — plus military time.

Military time converter · Minutes to hours · Minutes to seconds

Convert KB, MB, GB, TB and internet speeds.

Kb to mb · Mb to gb · Mb to kb

Roman numerals, binary, hexadecimal, decimal and color codes.

Roman numerals converter · Hex to decimal · Binary to decimal

Convert steps to miles and kilometers based on your stride.

Steps to miles · Miles to steps · Steps to km

Convert bar, psi, kPa and torque units like Nm and ft-lbs.

Bar to psi · Nm to ft lbs · Kpa to psi

Convert kW, horsepower, watts, amps, joules and calories.

Kw to hp · Watts to amps · Amps to watts