W to kW Converter
Convert W to kW: 1 W = 0.001 kW. Formula, worked example, table of common values and unit definitions.
Result2.5 kW
1 W = 0.001 kW
2,500 W =
2.5 kW
Formula
kW = W × 0.001 W = kW × 1,000
Worked example
- 2,500 W × 0.001 = 2.5 kW
Common values
| W | kW |
|---|---|
| 100 | 0.1 |
| 500 | 0.5 |
| 1,000 | 1 |
| 2,500 | 2.5 |
| 5,000 | 5 |
| 10,000 | 10 |
Unit definitions
| Unit | Equals | What it is |
|---|---|---|
| W | 1 W | Watt, one joule per second. The SI unit of power. |
| kW | 1,000 W | Kilowatt. The usual rating unit for motors, heaters and generators. |
Frequently asked questions
How many kW are in one W?
1 W = 0.001 kW.
What is the formula to convert W to kW?
kW = W × 0.001. To go back, W = kW × 1,000.
Is converting watts to kW the same as converting watts to kWh?
No. Watts and kW both measure power, so the conversion is a fixed factor. kWh measures energy and also needs the time, so use the watts to kWh calculator for that.
Related
Opposite direction: kW to W
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