Convert Kilowatt-hours to Kilojoules
Kilowatt-hours to Kilojoules conversion table
| Kilowatt-hours (kWh) | Kilojoules (kJ) |
|---|---|
| 1 kWh | 3600 kJ |
| 2 kWh | 7200 kJ |
| 5 kWh | 18000 kJ |
| 10 kWh | 36000 kJ |
| 25 kWh | 90000 kJ |
| 50 kWh | 180000 kJ |
| 100 kWh | 360000 kJ |
| 200 kWh | 720000 kJ |
| 500 kWh | 1800000 kJ |
| 1000 kWh | 3600000 kJ |
How to convert kilowatt-hours to kilojoules
The kWh-to-kJ conversion appears often when working with energy data across different unit systems. Energy conversions connect food nutrition labels (calories), electricity bills (kWh), and scientific measurements in joules or BTU.
To convert, multiply the kilowatt-hours value by 3600. Written as an equation: kJ = kWh × 3600.
One kilowatt-hours equals approximately 3600 kJ. This means you can multiply any kWh value by 3600 to get the equivalent in kJ.
Worked example: 1 kWh = 3600 kJ. Enter your own value in the converter above for instant results.
Common mistake: Food calories on nutrition labels are actually kilocalories (kcal), which confuses many people when comparing to joules or watt-hours.
Bookmark this page for quick kWh to kJ conversions, or use the swap button to reverse the direction and convert kJ back to kWh.
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Frequently asked questions
1 kWh equals 3600 kJ.
Multiply the kilowatt-hours value by 3600.
10 kWh = 36000 kJ.