Convert Watts (W) to Kilowatts (kW)
Convert watts (W) to kilowatts (kW): 1 kW = 1,000 W, so divide watts by 1,000. The everyday step between appliance ratings and larger power figures.
Formula
1 W = 0.001 kW
To convert W to kW, divide the value by 1000.
Conversion Table
| Watts (W) | Kilowatts (kW) |
|---|---|
| 0.01 W | 0 kW |
| 0.1 W | 0.0001 kW |
| 0.5 W | 0.0005 kW |
| 1 W | 0.001 kW |
| 2 W | 0.002 kW |
| 3 W | 0.003 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 |
| 250 W | 0.25 kW |
| 500 W | 0.5 kW |
| 1000 W | 1 kW |
| 2500 W | 2.5 kW |
| 5000 W | 5 kW |
| 10000 W | 10 kW |
| 50000 W | 50 kW |
Common W to kW Examples
- 1 W = 0.001 kW
- 5 W = 0.005 kW
- 10 W = 0.01 kW
- 25 W = 0.025 kW
- 50 W = 0.05 kW
- 100 W = 0.1 kW
- 500 W = 0.5 kW
- 1000 W = 1 kW
About W to kW
A kilowatt is a thousand watts: 1 kW = 1,000 W, so W divided by 1,000 gives kW — a 1,500 W kettle is 1.5 kW.
Watts rate light bulbs, chargers and small appliances; kilowatts rate heaters, EV chargers, motors and household supply. Power (W, kW) is the rate of energy use; multiply by time to get energy in watt-hours or kilowatt-hours.
Frequently Asked Questions
Where does the unit kW come from?
Kilowatts is a Power unit with its own historical and regional roots, now defined in relation to internationally agreed reference standards.
Where does the unit W come from?
Watts is a standard Power unit used in specific regions or fields. Its definition has been refined over time to match international measurement standards.
Is the conversion from W to kW exact?
The ratio 0.001 is defined to high precision and is exact for most practical purposes. Rounding only matters when many decimal places are needed.
How do I convert W to kW by hand?
Take the value in W and divide the value by 1000. The result is the same value expressed in kW.
What is the formula to convert W to kW?
The formula is 1 W = 0.001 kW. To convert any value, divide the value by 1000.
How much is 1 W in kW?
1 W equals 0.001 kW. This ratio applies to every conversion between the two units.