Unit & Currency Converters

Accurate conversions for length, weight, temperature, area, volume, currency and more, based on official unit definitions.

Currency ConverterConvert between 160+ world currencies with daily updated exchange rates. Length ConverterConvert between metric and imperial length units: millimeters, centimeters, meters, kilometers, inches, feet, yards and miles. Weight & Mass ConverterConvert weight and mass: grams, kilograms, tonnes, ounces, pounds, stones, carats and tolas. Temperature ConverterConvert temperature between Celsius, Fahrenheit and Kelvin with the exact formulas. Area ConverterConvert area: square meters, square feet, square yards, acres, hectares, square kilometers, marla and kanal. Volume ConverterConvert volume and capacity: milliliters, liters, cubic meters, US and UK gallons, cups, pints, tablespoons and teaspoons. Speed ConverterConvert speed: kilometers per hour, miles per hour, meters per second, knots and feet per second. Time ConverterConvert time units: milliseconds, seconds, minutes, hours, days, weeks, months and years. Data Storage ConverterConvert digital storage: bits, bytes, KB, MB, GB, TB and the binary units KiB, MiB, GiB and TiB. Pressure ConverterConvert pressure: pascals, kilopascals, bar, psi, atmospheres, mmHg and torr. Energy ConverterConvert energy: joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours and BTU. Power ConverterConvert power: watts, kilowatts, megawatts, mechanical and metric horsepower and BTU per hour. Fuel Economy ConverterConvert fuel consumption between liters per 100 km, kilometers per liter, US mpg and UK mpg. Angle ConverterConvert angles: degrees, radians, gradians, arcminutes, arcseconds and full turns. Frequency ConverterConvert frequency: hertz, kilohertz, megahertz, gigahertz and revolutions per minute. Force ConverterConvert force: newtons, kilonewtons, pounds-force, kilograms-force and dynes.