About the Watts to Kilowatts Converter
Convert watts (W) to kilowatts (kW) instantly. Includes the exact conversion factor, formula and a quick reference table.
Also known as: W to kW, Watts to Kilowatts, convert Watts to Kilowatts, w to kw, w to kw, watt to kilowatt.
How to use this calculator
- Enter value in watts.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Open “Step-by-step” to see how the answer was worked out.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
kW = W × 0.001
Worked example
Using the values pre-filled in the calculator above:
- Value in watts = 1,500 W
the calculator returns:
- Kilowatts: 1.5 kW
- Milliwatts: 1,500,000 mW
- Megawatts: 0.0015 MW
- Horsepower (mechanical): 2.0115 hp
Working
1,500 W × 0.001 = 1.5 kW