Energy Converter

Convert between joules, calories, kilowatt-hours, BTU, electron volts, and more. Choose any conversion below to get started.

Available Units (15)

Joule(J)Kilojoule(kJ)Calorie (small)(cal)Kilocalorie (food)(kcal)Watt-hour(Wh)Kilowatt-hour(kWh)Megawatt-hour(MWh)Electron Volt(eV)BTU(BTU)Therm (US)(thm)Foot-pound(ft·lb)Erg(erg)Newton-meter(N·m)Megajoule(MJ)Gigajoule(GJ)

All Energy Conversions (210)

JJoule conversions

Joule → Kilojoule Joule → Calorie (small)Joule → Kilocalorie (food)Joule → Watt-hour Joule → Kilowatt-hour Joule → Megawatt-hour Joule → Electron Volt Joule → BTU Joule → Therm (US)Joule → Foot-pound Joule → Erg Joule → Newton-meter Joule → Megajoule Joule → Gigajoule

kJKilojoule conversions

Kilojoule → Joule Kilojoule → Calorie (small)Kilojoule → Kilocalorie (food)Kilojoule → Watt-hour Kilojoule → Kilowatt-hour Kilojoule → Megawatt-hour Kilojoule → Electron Volt Kilojoule → BTU Kilojoule → Therm (US)Kilojoule → Foot-pound Kilojoule → Erg Kilojoule → Newton-meter Kilojoule → Megajoule Kilojoule → Gigajoule

calCalorie (small) conversions

Calorie (small) → Joule Calorie (small) → Kilojoule Calorie (small) → Kilocalorie (food)Calorie (small) → Watt-hour Calorie (small) → Kilowatt-hour Calorie (small) → Megawatt-hour Calorie (small) → Electron Volt Calorie (small) → BTU Calorie (small) → Therm (US)Calorie (small) → Foot-pound Calorie (small) → Erg Calorie (small) → Newton-meter Calorie (small) → Megajoule Calorie (small) → Gigajoule

kcalKilocalorie (food) conversions

Kilocalorie (food) → Joule Kilocalorie (food) → Kilojoule Kilocalorie (food) → Calorie (small)Kilocalorie (food) → Watt-hour Kilocalorie (food) → Kilowatt-hour Kilocalorie (food) → Megawatt-hour Kilocalorie (food) → Electron Volt Kilocalorie (food) → BTU Kilocalorie (food) → Therm (US)Kilocalorie (food) → Foot-pound Kilocalorie (food) → Erg Kilocalorie (food) → Newton-meter Kilocalorie (food) → Megajoule Kilocalorie (food) → Gigajoule

WhWatt-hour conversions

Watt-hour → Joule Watt-hour → Kilojoule Watt-hour → Calorie (small)Watt-hour → Kilocalorie (food)Watt-hour → Kilowatt-hour Watt-hour → Megawatt-hour Watt-hour → Electron Volt Watt-hour → BTU Watt-hour → Therm (US)Watt-hour → Foot-pound Watt-hour → Erg Watt-hour → Newton-meter Watt-hour → Megajoule Watt-hour → Gigajoule

kWhKilowatt-hour conversions

Kilowatt-hour → Joule Kilowatt-hour → Kilojoule Kilowatt-hour → Calorie (small)Kilowatt-hour → Kilocalorie (food)Kilowatt-hour → Watt-hour Kilowatt-hour → Megawatt-hour Kilowatt-hour → Electron Volt Kilowatt-hour → BTU Kilowatt-hour → Therm (US)Kilowatt-hour → Foot-pound Kilowatt-hour → Erg Kilowatt-hour → Newton-meter Kilowatt-hour → Megajoule Kilowatt-hour → Gigajoule

MWhMegawatt-hour conversions

Megawatt-hour → Joule Megawatt-hour → Kilojoule Megawatt-hour → Calorie (small)Megawatt-hour → Kilocalorie (food)Megawatt-hour → Watt-hour Megawatt-hour → Kilowatt-hour Megawatt-hour → Electron Volt Megawatt-hour → BTU Megawatt-hour → Therm (US)Megawatt-hour → Foot-pound Megawatt-hour → Erg Megawatt-hour → Newton-meter Megawatt-hour → Megajoule Megawatt-hour → Gigajoule

eVElectron Volt conversions

Electron Volt → Joule Electron Volt → Kilojoule Electron Volt → Calorie (small)Electron Volt → Kilocalorie (food)Electron Volt → Watt-hour Electron Volt → Kilowatt-hour Electron Volt → Megawatt-hour Electron Volt → BTU Electron Volt → Therm (US)Electron Volt → Foot-pound Electron Volt → Erg Electron Volt → Newton-meter Electron Volt → Megajoule Electron Volt → Gigajoule

BTUBTU conversions

BTU → Joule BTU → Kilojoule BTU → Calorie (small)BTU → Kilocalorie (food)BTU → Watt-hour BTU → Kilowatt-hour BTU → Megawatt-hour BTU → Electron Volt BTU → Therm (US)BTU → Foot-pound BTU → Erg BTU → Newton-meter BTU → Megajoule BTU → Gigajoule

thmTherm (US) conversions

Therm (US) → Joule Therm (US) → Kilojoule Therm (US) → Calorie (small)Therm (US) → Kilocalorie (food)Therm (US) → Watt-hour Therm (US) → Kilowatt-hour Therm (US) → Megawatt-hour Therm (US) → Electron Volt Therm (US) → BTU Therm (US) → Foot-pound Therm (US) → Erg Therm (US) → Newton-meter Therm (US) → Megajoule Therm (US) → Gigajoule

ft·lbFoot-pound conversions

Foot-pound → Joule Foot-pound → Kilojoule Foot-pound → Calorie (small)Foot-pound → Kilocalorie (food)Foot-pound → Watt-hour Foot-pound → Kilowatt-hour Foot-pound → Megawatt-hour Foot-pound → Electron Volt Foot-pound → BTU Foot-pound → Therm (US)Foot-pound → Erg Foot-pound → Newton-meter Foot-pound → Megajoule Foot-pound → Gigajoule

ergErg conversions

Erg → Joule Erg → Kilojoule Erg → Calorie (small)Erg → Kilocalorie (food)Erg → Watt-hour Erg → Kilowatt-hour Erg → Megawatt-hour Erg → Electron Volt Erg → BTU Erg → Therm (US)Erg → Foot-pound Erg → Newton-meter Erg → Megajoule Erg → Gigajoule

N·mNewton-meter conversions

Newton-meter → Joule Newton-meter → Kilojoule Newton-meter → Calorie (small)Newton-meter → Kilocalorie (food)Newton-meter → Watt-hour Newton-meter → Kilowatt-hour Newton-meter → Megawatt-hour Newton-meter → Electron Volt Newton-meter → BTU Newton-meter → Therm (US)Newton-meter → Foot-pound Newton-meter → Erg Newton-meter → Megajoule Newton-meter → Gigajoule

MJMegajoule conversions

Megajoule → Joule Megajoule → Kilojoule Megajoule → Calorie (small)Megajoule → Kilocalorie (food)Megajoule → Watt-hour Megajoule → Kilowatt-hour Megajoule → Megawatt-hour Megajoule → Electron Volt Megajoule → BTU Megajoule → Therm (US)Megajoule → Foot-pound Megajoule → Erg Megajoule → Newton-meter Megajoule → Gigajoule

GJGigajoule conversions

Gigajoule → Joule Gigajoule → Kilojoule Gigajoule → Calorie (small)Gigajoule → Kilocalorie (food)Gigajoule → Watt-hour Gigajoule → Kilowatt-hour Gigajoule → Megawatt-hour Gigajoule → Electron Volt Gigajoule → BTU Gigajoule → Therm (US)Gigajoule → Foot-pound Gigajoule → Erg Gigajoule → Newton-meter Gigajoule → Megajoule