Joule to Watt-hour - 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
Common Conversion Factors
Joule to Calorie
1 J = 0.239006 calKilocalorie to Joule
1 kcal = 4184 JWatt-hour to Joule
1 Wh = 3600 JKilowatt-hour to Joule
1 kWh = 3600000 JBTU to Joule
1 BTU = 1055.06 JCalorie to Kilocalorie
1 cal = 0.001 kcalElectronvolt to Joule
1 eV = 1.602e-19 JBTU to Kilocalorie
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