Convert watt-hours to kilowatt-hours
1 Wh = 0.001 kWh — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001kWh
As a fraction: 1/1000
1 Wh = 0.001 kWh
How to convert watt-hours to kilowatt-hours
Multiply the number of watt-hours by 0.001 to get kilowatt-hours.
The exact factor is 0.001 — as a fraction, 1/1000.
Kilowatt-hour: How electricity is billed everywhere.
Watt-hour to Kilowatt-hour conversion table
| Watt-hours (Wh) | Kilowatt-hours (kWh) |
|---|---|
| 1 Wh | 0.001 |
| 2 Wh | 0.002 |
| 3 Wh | 0.003 |
| 5 Wh | 0.005 |
| 10 Wh | 0.01 |
| 20 Wh | 0.02 |
| 25 Wh | 0.025 |
| 50 Wh | 0.05 |
| 100 Wh | 0.1 |
| 250 Wh | 0.25 |
| 500 Wh | 0.5 |
| 1000 Wh | 1 |
Kilowatt-hour to Watt-hour conversion table
| Kilowatt-hours (kWh) | Watt-hours (Wh) |
|---|---|
| 1 kWh | 1000 |
| 2 kWh | 2000 |
| 3 kWh | 3000 |
| 5 kWh | 5000 |
| 10 kWh | 10 000 |
| 20 kWh | 20 000 |
| 25 kWh | 25 000 |
| 50 kWh | 50 000 |
| 100 kWh | 100 000 |
| 250 kWh | 250 000 |
| 500 kWh | 500 000 |
| 1000 kWh | 1 000 000 |
Frequently asked
How many kilowatt-hours are in a watt-hour?
One watt-hour equals 0.001 kilowatt-hours (Wh → kWh). That figure is exact, not rounded.
How do you convert watt-hours to kilowatt-hours?
Multiply the number of watt-hours by 0.001 to get kilowatt-hours.
What is 1 kWh in watt-hours?
One kilowatt-hour is 1000 watt-hours.
What is 10 Wh in kWh?
10 Wh = 0.01 kWh.
What exactly is a kilowatt-hour?
How electricity is billed everywhere.