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Kilojoules to Watt-hours
Convert kilojoules (kJ) to watt-hours (Wh). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 kJ = 0.277778 Wh
Kilojoules to Watt-hours Conversion Table
Common values, ready to copy:
| kilojoules | watt-hours |
|---|---|
| 1 kJ | 0.277778 Wh |
| 2 kJ | 0.555556 Wh |
| 5 kJ | 1.3889 Wh |
| 10 kJ | 2.7778 Wh |
| 25 kJ | 6.9444 Wh |
| 50 kJ | 13.8889 Wh |
| 100 kJ | 27.7778 Wh |
| 1,000 kJ | 277.78 Wh |
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Formula
watt-hours = kilojoules × 2.77777778e-1
Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.
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