1 watt-hour (Wh) = 0.001 kilowatt-hours (kWh). To convert, divide by 1,000: kWh = Wh ÷ 1,000. For example, 500 Wh = 0.5 kWh.
kWh = Wh ÷ 1,000
Watt-hours to kilowatt-hours table
| Watt-hours (Wh) | Kilowatt-hours (kWh) |
|---|---|
| 100 | 0.1 |
| 200 | 0.2 |
| 300 | 0.3 |
| 400 | 0.4 |
| 500 | 0.5 |
| 1,000 | 1 |
| 2,000 | 2 |
| 2,500 | 2.5 |
| 5,000 | 5 |
| 10,000 | 10 |
| 25,000 | 25 |
| 50,000 | 50 |
| 100,000 | 100 |
The two units
Watt-hour (Wh). One watt for one hour: 3,600 joules. Battery capacities are given in Wh.
Kilowatt-hour (kWh). One kilowatt for one hour: the "unit" on an electricity bill.
Because both units are defined in terms of the same base unit, the factor 0.001 is exact, not a rounded measurement.
Convert watt-hours to other units
- Watt-hours to joules — 1 Wh = 3,600 J
- Watt-hours to kilojoules — 1 Wh = 3.6 kJ
- Watt-hours to calories — 1 Wh = 860.4206501 cal
- Watt-hours to kilocalories — 1 Wh = 0.8604206501 kcal
- Watt-hours to British thermal units — 1 Wh = 3.412141633 BTU
- Watt-hours to electronvolts — 1 Wh = 2.246943e+22 eV
Convert other units to kilowatt-hours
Questions people ask
- How many kilowatt-hours are in a watt-hour?
- 0.001, exactly.
- How do you convert watt-hours to kilowatt-hours?
- kWh = Wh ÷ 1,000. It is the same as dividing by 1,000.
- How do you convert kilowatt-hours back to watt-hours?
- Wh = kWh × 1,000. See kilowatt-hours to watt-hours.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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