EngiRef / Power conversion
Convert Watts to Kilowatts (W to kW)
1 W = 0.001 kW. Convert watts to kilowatts with the exact factor, a common-values table and a free converter.
PowerSingle factor7 worked values
Conversion factor
kW = W × 0.001
1 W = 0.001 kW
Multiply by 0.001 kW to go from watts to kilowatts, or divide by it to come back. The factor and every value below are computed by the same converter that runs at /convert, so this page and the tool cannot disagree.
W to kW table
| Watts (W) | Kilowatts (kW) |
|---|---|
| 1 W | 0.001 kW |
| 2 W | 0.002 kW |
| 5 W | 0.005 kW |
| 10 W | 0.01 kW |
| 20 W | 0.02 kW |
| 50 W | 0.05 kW |
| 100 W | 0.1 kW |
Every figure is computed at build time by the site’s own converter from the power unit registry. For a value that is not listed, put it into the interactive converter.
Frequently asked questions
How many kilowatts are in one Watt?
One Watt is 0.001 kW, so 100 W is 0.1 kW.
What is the formula to convert watts to kilowatts?
kW = W × 0.001. Multiply the value in watts by 0.001 to get kilowatts.
How do I convert kilowatts back to watts?
W = kW × 1000, so 1 kW is 1000 W. The kW to W page carries the same table in that direction.