Kilowatt Hour to Kilojoule (kWh to kJ)
Convert kWh to kJ — Energy converter
One kilowatt hour equals 3600 kJ, so to convert kilowatt-hours to kilojoules you multiply the value by 3600. A kilowatt hour is larger than a kilojoule — going the other way, 1 kJ = 0.0002777778 kWh. For example, 10 kWh = 36000 kJ and 50 kWh = 180000 kJ.
3600Click to copy
1 kWh = 3600 kJ
Kilowatt Hour to Kilojoule formula
1 Kilowatt Hour = 3600 kJ
Worked examples
- 25 kWh = 90000 kJ
- 100 kWh = 360000 kJ
Kilowatt Hour to Kilojoule conversion table
| Kilowatt Hour (kWh) | Kilojoule (kJ) |
|---|---|
| 1 | 3600 |
| 2 | 7200 |
| 3 | 10800 |
| 5 | 18000 |
| 8 | 28800 |
| 10 | 36000 |
| 12 | 43200 |
| 15 | 54000 |
| 20 | 72000 |
| 25 | 90000 |
| 50 | 180000 |
| 100 | 360000 |
| 250 | 900000 |
| 500 | 1800000 |
| 1000 | 3600000 |
Frequently asked questions
How many kilojoules are in one kilowatt hour?
One kilowatt hour equals 3600 kilojoules (kJ).
How many kilowatt-hours are in one kilojoule?
One kilojoule equals 0.0002777778 kilowatt-hours (kWh).
How do you convert kilowatt-hours to kilojoules?
1 Kilowatt Hour = 3600 kJ. Use the calculator above for any value.
What is 5 kWh in kJ?
5 kWh = 18000 kJ.
What is 100 kWh in kJ?
100 kWh = 360000 kJ.
What is 10 kWh in kJ?
10 kWh = 36000 kJ.
What is 20 kWh in kJ?
20 kWh = 72000 kJ.
Is a kilowatt hour bigger than a kilojoule?
Yes. A kilowatt hour is larger — one kilowatt hour equals 3600 kilojoules (kJ).