Rangdom

Convert an energy value into every unit at once

Enter one value and a unit — joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, or foot-pounds — and read it back in every unit at once. Each input is reduced to a canonical value in joules, then every output is derived from that base. This tool uses the thermochemical calorie (1 cal = 4.184 J), so the food Calorie shown as kcal is 1 kcal = 4184 J, and the IT British thermal unit (1 BTU = 1055.06 J). Decimals are supported, but an energy value cannot be negative.