Kilojoules to Kilowatt-hours Converter
Convert kilojoules (kJ) to kilowatt-hours (kWh) instantly. 1 kilojoule = 0.000278 kilowatt-hours.
How to convert kilojoules to kilowatt-hours
kWh = kJ × 0.000278
To convert kilojoules to kilowatt-hours, multiply the energy value by 0.000278. One kilojoule (kJ) is equal to 0.000278 kilowatt-hours (kWh). For quick everyday conversions, the interactive converter above gives you the exact result as you type — no rounding surprises.
Kilojoules to Kilowatt-hours conversion table
| Kilojoules (kJ) | Kilowatt-hours (kWh) |
|---|---|
| 1 kJ | 0.000278 kWh |
| 2 kJ | 0.000556 kWh |
| 3 kJ | 0.000833 kWh |
| 4 kJ | 0.001111 kWh |
| 5 kJ | 0.001389 kWh |
| 6 kJ | 0.001667 kWh |
| 7 kJ | 0.001944 kWh |
| 8 kJ | 0.002222 kWh |
| 9 kJ | 0.0025 kWh |
| 10 kJ | 0.002778 kWh |
| 15 kJ | 0.004167 kWh |
| 20 kJ | 0.005556 kWh |
| 25 kJ | 0.006944 kWh |
| 50 kJ | 0.013889 kWh |
| 100 kJ | 0.027778 kWh |
Frequently asked questions
How many kilowatt-hours are in 1 kilojoule?
1 kilojoule equals 0.000278 kilowatt-hours.
How do I convert kilojoules to kilowatt-hours?
Multiply the number of kilojoules by 0.000278. For example, 8 kJ × 0.000278 = 0.002222 kWh.
What is 8 kilojoules in kilowatt-hours?
8 kilojoules is equal to 0.002222 kilowatt-hours.
Can I convert kilowatt-hours back to kilojoules?
Yes — use our Kilowatt-hours to Kilojoules converter, or divide by 0.000278.