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Convert watts to kilowatts instantly. Enter a value below, or use the formula and reference table further down the page.
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How to convert watts to kilowatts
Multiply the value by 0.001.
kW = W × 0.001Example: 10 W = 0.01 kW.
Watts to Kilowatts conversion table
| Watts (W) | Kilowatts (kW) |
|---|---|
| 1 W | 0.001 kW |
| 2 W | 0.002 kW |
| 3 W | 0.003 kW |
| 4 W | 0.004 kW |
| 5 W | 0.005 kW |
| 10 W | 0.01 kW |
| 15 W | 0.015 kW |
| 20 W | 0.02 kW |
| 25 W | 0.025 kW |
| 50 W | 0.05 kW |
| 100 W | 0.1 kW |
Frequently asked questions
How many kilowatts is 1 watt?
1 watt equals 0.001 kilowatts.
What is the formula to convert W to kW?
To convert W to kW, multiply the value by 0.001. The full formula is: kW = W × 0.001.
How do I convert kilowatts back to watts?
Use the same calculator above and type your value into the kilowatts field instead — it converts in both directions. Or use the reverse formula: W = kW ÷ 0.001.
Is the W to kW conversion exact?
The conversion factor used here (0.001) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.