Watts to Kilowatts converter
W to kW — 1 hp = 745.7 W
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Convert Watts to all units
kW Kilowatts—
MW Megawatts—
hp Horsepower—
BTU/h Btu Per Hour—
ft·lb/s Foot Pounds Per Second—
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Conversion Formula
Watts to Kilowatts: 1 hp = 745.7 W
Example: To convert 3 hp to watts: 3 × 745.7 = 2,237.1 W
Quick Reference: Watts to Kilowatts
| Watts | Kilowatts |
|---|---|
| 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 |
| 1,000 W | 1 kW |
Frequently Asked Questions
How do I convert Watts to Kilowatts?
Multiply your watts value by the conversion factor. To convert 3 hp to watts: 3 × 745.7 = 2,237.1 W. You can also use the converter above for instant results.
What is W in kW?
1 W equals 0.001 kW. This is based on the standard conversion factor: 1 hp = 745.7 W.
Is this converter accurate?
Yes. ConvertFast uses precise conversion factors computed client-side in your browser. Results are accurate to 6 significant digits, which covers all practical use cases.