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Energy Converter
Energy conversions are used in nutrition, physics, and engineering. Convert joules, calories, kilowatt-hours, BTU, and more.
Popular energy conversions
Units in this category
Joule (J)
Kilojoule (kJ)
Megajoule (MJ)
Calorie (small) (cal)
Kilocalorie (kcal)
Watt Hour (Wh)
Kilowatt Hour (kWh)
Electron Volt (eV)
British Thermal Unit (BTU)
Foot-Pound (ft⋅lb)
All 90 conversions
Joule → Kilojoule Joule → Megajoule Joule → Calorie (small) Joule → Kilocalorie Joule → Watt Hour Joule → Kilowatt Hour Joule → Electron Volt Joule → British Thermal Unit Joule → Foot-Pound Kilojoule → Joule Kilojoule → Megajoule Kilojoule → Calorie (small) Kilojoule → Kilocalorie Kilojoule → Watt Hour Kilojoule → Kilowatt Hour Kilojoule → Electron Volt Kilojoule → British Thermal Unit Kilojoule → Foot-Pound Megajoule → Joule Megajoule → Kilojoule Megajoule → Calorie (small) Megajoule → Kilocalorie Megajoule → Watt Hour Megajoule → Kilowatt Hour Megajoule → Electron Volt Megajoule → British Thermal Unit Megajoule → Foot-Pound Calorie (small) → Joule Calorie (small) → Kilojoule Calorie (small) → Megajoule Calorie (small) → Kilocalorie Calorie (small) → Watt Hour Calorie (small) → Kilowatt Hour Calorie (small) → Electron Volt Calorie (small) → British Thermal Unit Calorie (small) → Foot-Pound Kilocalorie → Joule Kilocalorie → Kilojoule Kilocalorie → Megajoule Kilocalorie → Calorie (small) Kilocalorie → Watt Hour Kilocalorie → Kilowatt Hour Kilocalorie → Electron Volt Kilocalorie → British Thermal Unit Kilocalorie → Foot-Pound Watt Hour → Joule Watt Hour → Kilojoule Watt Hour → Megajoule Watt Hour → Calorie (small) Watt Hour → Kilocalorie Watt Hour → Kilowatt Hour Watt Hour → Electron Volt Watt Hour → British Thermal Unit Watt Hour → Foot-Pound Kilowatt Hour → Joule Kilowatt Hour → Kilojoule Kilowatt Hour → Megajoule Kilowatt Hour → Calorie (small) Kilowatt Hour → Kilocalorie Kilowatt Hour → Watt Hour Kilowatt Hour → Electron Volt Kilowatt Hour → British Thermal Unit Kilowatt Hour → Foot-Pound Electron Volt → Joule Electron Volt → Kilojoule Electron Volt → Megajoule Electron Volt → Calorie (small) Electron Volt → Kilocalorie Electron Volt → Watt Hour Electron Volt → Kilowatt Hour Electron Volt → British Thermal Unit Electron Volt → Foot-Pound British Thermal Unit → Joule British Thermal Unit → Kilojoule British Thermal Unit → Megajoule British Thermal Unit → Calorie (small) British Thermal Unit → Kilocalorie British Thermal Unit → Watt Hour British Thermal Unit → Kilowatt Hour British Thermal Unit → Electron Volt British Thermal Unit → Foot-Pound Foot-Pound → Joule Foot-Pound → Kilojoule Foot-Pound → Megajoule Foot-Pound → Calorie (small) Foot-Pound → Kilocalorie Foot-Pound → Watt Hour Foot-Pound → Kilowatt Hour Foot-Pound → Electron Volt Foot-Pound → British Thermal Unit