Convert Kilowatt-hour to Kilojoule
1 kilowatt-hour = 3,600 kilojoules (kWh to kJ).
A kilowatt-hour is larger than a kilojoule — one kilowatt-hour contains 3,600 kilojoules. Both units describe energie, and the reverse is just as easy — one kilojoule equals 0.000277778 kilowatt-hours. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 kWh = 3,600 kJ
How to convert Kilowatt-hours to Kilojoules
Multiply the kilowatt-hour value by 3,600 to get kilojoules.
Example: 10 kilowatt-hours = 36,000 kilojoules.
Kilowatt-hour to Kilojoule Conversion Chart
| Kilowatt-hours | Kilojoules |
|---|---|
| 1 kWh | 3,600 kJ |
| 2 kWh | 7,200 kJ |
| 3 kWh | 10,800 kJ |
| 5 kWh | 18,000 kJ |
| 10 kWh | 36,000 kJ |
| 20 kWh | 72,000 kJ |
| 25 kWh | 90,000 kJ |
| 50 kWh | 180,000 kJ |
| 100 kWh | 360,000 kJ |
| 1000 kWh | 3,600,000 kJ |
Frequently Asked Questions
- How many kilojoules are in a kilowatt-hour?
- There are 3,600 kilojoules in 1 kilowatt-hour.
- How do you convert kilowatt-hours to kilojoules?
- Multiply the kilowatt-hour value by 3,600 to get kilojoules.
- What is 5 kilowatt-hours in kilojoules?
- 5 kilowatt-hours equals 18,000 kilojoules.
- What is 100 kilowatt-hours in kilojoules?
- 100 kilowatt-hours equals 360,000 kilojoules.
- What is 1 kilojoule in kilowatt-hours?
- 1 kilojoule equals 0.00027777778 kilowatt-hours.
- Is this kilowatt-hour to kilojoule converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.