Kilowatt-hours to Watt-hours
Convert kilowatt-hours (kWh) to watt-hours (Wh) instantly — with formula and reference table.
kWh
Wh
Quick answer: 1 kWh = 1000 Wh. To convert kilowatt-hours to watt-hours, multiply by kWh × 1000.
Converting kilowatt-hours to watt-hours
This converter changes a value in kilowatt-hours (kWh) into watt-hours (Wh). One kilowatt-hour equals 1000 Wh. One kilowatt-hour equals exactly 1,000 watt-hours. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
Wh = kWh × 1000
Example
Convert 10 kWh to Wh: 10 × 1000 = 10000 Wh.
Kilowatt-hours to Watt-hours conversion table
| Kilowatt-hours (kWh) | Watt-hours (Wh) |
|---|---|
| 1 kWh | 1000 Wh |
| 2 kWh | 2000 Wh |
| 3 kWh | 3000 Wh |
| 5 kWh | 5000 Wh |
| 10 kWh | 10000 Wh |
| 20 kWh | 20000 Wh |
| 25 kWh | 25000 Wh |
| 50 kWh | 50000 Wh |
| 100 kWh | 100000 Wh |
How to use this converter
- Enter a value in the kilowatt-hours (kWh) field.
- Read the converted value in watt-hours (Wh) below.
- Type into the Wh field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many watt-hours are in a kilowatt-hour?
1 kWh equals 1,000 watt-hours.
How do I convert 2.5 kWh to Wh?
2.5 times 1,000 = 2,500 Wh.
How big is a phone battery in Wh?
A typical phone battery is about 12 to 20 Wh (0.012 to 0.02 kWh).