Watts to Kilowatts Converter
1 watt = 0.001 kilowatts
1 watt equals 0.001 kilowatts
How to convert watts to kilowatts
Power is energy transferred per time: 1 W = 1 J/s. Mechanical, metric and electrical horsepower have different definitions; select the version stated on the equipment rating.
kW = W ÷ 1000One kilowatt corresponds to 1000 watts, so divide by that figure. Displayed constants may be rounded; the converter uses the stored factor before rounding the result.
0.01 kW = 10 ÷ 1000Watts to kilowatts conversion table
Common values in watts, converted to kilowatts.
| Watts (W) | Kilowatts (kW) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
About these units
wattW
The SI derived unit of power: one joule per second.
kilowattkW
One thousand watts. The usual rating unit for motors and appliances.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.