kWh to Wh Converter
Convert kWh to Wh: 1 kWh = 1,000 Wh. Formula, worked example, table of common values and unit definitions.
Result2,500 Wh
1 kWh = 1,000 Wh
2.5 kWh =
2,500 Wh
Formula
Wh = kWh × 1,000 kWh = Wh × 0.001
Worked example
- 2.5 kWh × 1,000 = 2,500 Wh
Common values
| kWh | Wh |
|---|---|
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1,000 |
| 2.5 | 2,500 |
| 10 | 10,000 |
| 100 | 100,000 |
Unit definitions
| Unit | Equals | What it is |
|---|---|---|
| kWh | 3,600,000 J | Kilowatt-hour. The billing unit for electricity: one kilowatt for one hour. |
| Wh | 3,600 J | Watt-hour: one watt for one hour. |
Frequently asked questions
How many Wh are in one kWh?
1 kWh = 1,000 Wh.
What is the formula to convert kWh to Wh?
Wh = kWh × 1,000. To go back, kWh = Wh × 0.001.
Why do bills use kWh while batteries use Wh?
Household energy is large, so tariffs use kilowatt-hours. Batteries and small devices hold far less, so watt-hours give convenient numbers. One kWh is 1,000 Wh.
Related
Opposite direction: Wh to kWh
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