Kilowatt-hour to Kilojoule
Convert kWh to kJ instantly — free, no sign-up.
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About the Kilowatt-hour (kWh)
The Kilowatt-hour is equal to 1,000 watt-hours, the standard unit electric utilities bill you in and the unit used for EV battery capacity and home solar production.
About the Kilojoule (kJ)
The Kilojoule is equal to 1,000 joules, the unit used on nutrition labels in most countries outside the US alongside (or instead of) Calories.
How to convert kWh to kJ
- Enter the value in kWh in the box above.
- The kJ equivalent updates instantly.
- Use the swap button to convert kJ back to kWh just as easily.