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Energy
Watt-hours to Kilowatt-hours
Convert watt-hours (Wh) to kilowatt-hours (kWh). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 Wh = 0.001 kWh
Watt-hours to Kilowatt-hours Conversion Table
Common values, ready to copy:
| watt-hours | kilowatt-hours |
|---|---|
| 1 Wh | 0.001 kWh |
| 2 Wh | 0.002 kWh |
| 5 Wh | 0.005 kWh |
| 10 Wh | 0.01 kWh |
| 25 Wh | 0.025 kWh |
| 50 Wh | 0.05 kWh |
| 100 Wh | 0.1 kWh |
| 1,000 Wh | 1 kWh |
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Formula
kilowatt-hours = watt-hours × 0.001
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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