Watt-hours to kilowatt-hours converter
Kilowatt-hours (kWh)
1 watt-hour = 0.001 kilowatt-hours
How to convert watt-hours to kilowatt-hours
kWh = Wh × 0.001
Multiply the number of watt-hours by 0.001 to get kilowatt-hours. Going the other way, divide by 0.001 (or multiply by 1000).
One watt-hour is exactly defined as 0.001 kilowatt-hours (to 12 significant figures), and one kilowatt-hour is 1000 watt-hours.
Worked examples
- Convert 5 watt-hours: 5 × 0.001 = 0.005 0.005 kilowatt-hours.
- Convert 12.5 watt-hours: 12.5 × 0.001 = 0.0125 0.0125 kilowatt-hours.
- Convert 250 watt-hours: 250 × 0.001 = 0.25 0.25 kilowatt-hours.
Quick-reference table
| Wh | kWh |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 75 | 0.075 |
| 100 | 0.1 |
| 1,000 | 1 |
| kWh | Wh |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 75 | 75,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
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Frequently asked questions
How many kilowatt-hours are in 1 watt-hour?
1 watt-hour equals 0.001 kilowatt-hours.
What is the formula to convert watt-hours to kilowatt-hours?
Use kWh = Wh × 0.001. Multiply the number of watt-hours by 0.001 to get kilowatt-hours. Going the other way, divide by 0.001 (or multiply by 1000).
What is 100 watt-hours in kilowatt-hours?
100 watt-hours is 0.1 kilowatt-hours.