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Joules to Kilowatt-hours
Convert joules (J) to kilowatt-hours (kWh). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 J = 2.7778e-7 kWh
Joules to Kilowatt-hours Conversion Table
Common values, ready to copy:
| joules | kilowatt-hours |
|---|---|
| 1 J | 2.7778e-7 kWh |
| 2 J | 5.5556e-7 kWh |
| 5 J | 1.3889e-6 kWh |
| 10 J | 2.7778e-6 kWh |
| 25 J | 6.9444e-6 kWh |
| 50 J | 1.3889e-5 kWh |
| 100 J | 2.7778e-5 kWh |
| 1,000 J | 0.000278 kWh |
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Formula
kilowatt-hours = joules × 2.77777778e-7
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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