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Power Converter
Convert power between watts, kilowatts, horsepower and BTU/hour.
Free · No sign-up · Updated August 2026
1 W = 0.001 kW
| Unit | 1 W = |
|---|---|
| Watt | 1 W |
| Kilowatt | 0.001 kW |
| Megawatt | 1.000000e-6 MW |
| Horsepower | 0.00134102 hp |
| Metric horsepower | 0.00135962 PS |
| BTU/hour | 3.4121425 BTU/h |
Converts instantly in your browser using precise factors. Nothing is uploaded.
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
How many watts is 1 horsepower?＋
1 mechanical horsepower ≈ 745.7 watts. Convert between all common power units here.
Is it free and private?＋
Yes — it's free, needs no sign-up, and converts instantly in your browser.