EngiRef / Energy conversion
Convert Kilojoules to Kilowatt-hours (kJ to kWh)
1 kJ = 0.000277777778 kWh. Convert kilojoules to kilowatt-hours with the exact factor, a common-values table and a free converter.
Conversion factor
kWh = kJ × 0.000277777778
1 kJ = 0.000277777778 kWh
Multiply by 0.000277777778 kWh to go from kilojoules to kilowatt-hours, or divide by it to come back. The factor and every value below are computed by the same converter that runs at /convert, so this page and the tool cannot disagree.
kJ to kWh table
| Kilojoules (kJ) | Kilowatt-hours (kWh) |
|---|---|
| 1 kJ | 0.000277777778 kWh |
| 2 kJ | 0.000555555556 kWh |
| 5 kJ | 0.00138888889 kWh |
| 10 kJ | 0.00277777778 kWh |
| 20 kJ | 0.00555555556 kWh |
| 50 kJ | 0.0138888889 kWh |
| 100 kJ | 0.0277777778 kWh |
Every figure is computed at build time by the site’s own converter from the energy unit registry. For a value that is not listed, put it into the interactive converter.
Frequently asked questions
How many kilowatt-hours are in one kilojoule?
One kilojoule is 0.000277777778 kWh, so 100 kJ is 0.0277777778 kWh.
What is the formula to convert kilojoules to kilowatt-hours?
kWh = kJ × 0.000277777778. Multiply the value in kilojoules by 0.000277777778 to get kilowatt-hours.
How do I convert kilowatt-hours back to kilojoules?
kJ = kWh × 3600, so 1 kWh is 3600 kJ. The kWh to kJ page carries the same table in that direction.