Energy Converter
Convert between 7 different energy units instantly
Joule1 J
Calorie0.239006 cal
Kilocalorie0.000239 kcal
Watt-hour0.000278 Wh
Kilowatt-hour0 kWh
BTU0.000948 BTU
Electronvolt6.2415e+18 eV
一般的な換算係数
ジュールからカロリー
1 J = 0.239006 calキロカロリーからジュール
1 kcal = 4184 Jワット時からジュール
1 Wh = 3600 Jキロワット時からジュール
1 kWh = 3600000 JBTUからジュール
1 BTU = 1055.06 Jカロリーからキロカロリー
1 cal = 0.001 kcal電子ボルトからジュール
1 eV = 1.602e-19 JBTUからキロカロリー
1 BTU = 0.252164 kcalAbout Energy Conversion
Energy is the capacity to do work, and it comes in many forms including thermal, electrical, chemical, and kinetic energy. Different fields use different units to measure energy.
The SI unit of energy is the joule (J). Calories and kilocalories are commonly used in nutrition, kilowatt-hours for electricity billing, BTU in heating and cooling systems, and electronvolts in particle physics.
This converter supports all major energy units, making it useful for physics calculations, nutrition planning, energy cost analysis, and scientific research.
Energy Converter - Convert between 7 different energy units instantly
Joule → CalorieJoule → KilocalorieJoule → Watt-hourJoule → Kilowatt-hourJoule → BTUJoule → ElectronvoltCalorie → JouleCalorie → KilocalorieCalorie → Watt-hourCalorie → Kilowatt-hourCalorie → BTUCalorie → ElectronvoltKilocalorie → JouleKilocalorie → CalorieKilocalorie → Watt-hourKilocalorie → Kilowatt-hourKilocalorie → BTUKilocalorie → ElectronvoltWatt-hour → JouleWatt-hour → CalorieWatt-hour → KilocalorieWatt-hour → Kilowatt-hourWatt-hour → BTUWatt-hour → ElectronvoltKilowatt-hour → JouleKilowatt-hour → CalorieKilowatt-hour → KilocalorieKilowatt-hour → Watt-hourKilowatt-hour → BTUKilowatt-hour → ElectronvoltBTU → JouleBTU → CalorieBTU → KilocalorieBTU → Watt-hourBTU → Kilowatt-hourBTU → ElectronvoltElectronvolt → JouleElectronvolt → CalorieElectronvolt → KilocalorieElectronvolt → Watt-hourElectronvolt → Kilowatt-hourElectronvolt → BTU