Kilowatt-hours to Kilojoules Converter
Convert kilowatt-hours (kWh) to kilojoules (kJ) instantly. 1 kilowatt-hour = 3,600 kilojoules.
How to convert kilowatt-hours to kilojoules
kJ = kWh × 3,600
To convert kilowatt-hours to kilojoules, multiply the energy value by 3,600. One kilowatt-hour (kWh) is equal to 3,600 kilojoules (kJ). For quick everyday conversions, the interactive converter above gives you the exact result as you type — no rounding surprises.
Kilowatt-hours to Kilojoules conversion table
| Kilowatt-hours (kWh) | Kilojoules (kJ) |
|---|---|
| 1 kWh | 3,600 kJ |
| 2 kWh | 7,200 kJ |
| 3 kWh | 10,800 kJ |
| 4 kWh | 14,400 kJ |
| 5 kWh | 18,000 kJ |
| 6 kWh | 21,600 kJ |
| 7 kWh | 25,200 kJ |
| 8 kWh | 28,800 kJ |
| 9 kWh | 32,400 kJ |
| 10 kWh | 36,000 kJ |
| 15 kWh | 54,000 kJ |
| 20 kWh | 72,000 kJ |
| 25 kWh | 90,000 kJ |
| 50 kWh | 180,000 kJ |
| 100 kWh | 360,000 kJ |
Frequently asked questions
How many kilojoules are in 1 kilowatt-hour?
1 kilowatt-hour equals 3,600 kilojoules.
How do I convert kilowatt-hours to kilojoules?
Multiply the number of kilowatt-hours by 3,600. For example, 8 kWh × 3,600 = 28,800 kJ.
What is 8 kilowatt-hours in kilojoules?
8 kilowatt-hours is equal to 28,800 kilojoules.
Can I convert kilojoules back to kilowatt-hours?
Yes — use our Kilojoules to Kilowatt-hours converter, or divide by 3,600.