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Watt to Horsepower
Convert watt (W) to horsepower (hp) — with the exact factor, a quick-reference table and a free converter that works offline.
1 W = 0.001341022 hp
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Open the free converter with this conversion pre-loaded — no sign-up, works offline after first load.
Conversion table
| Watt (W) | Horsepower (hp) |
|---|---|
| 1 W | 0.001341022 hp |
| 2 W | 0.002682044 hp |
| 5 W | 0.00670511 hp |
| 10 W | 0.01341022 hp |
| 20 W | 0.02682044 hp |
| 50 W | 0.0670511 hp |
| 100 W | 0.1341022 hp |
| 500 W | 0.670511 hp |
How the conversion works
Both units measure power. One watt equals exactly 0.001341022 hp, so multiply by that factor to convert. Mechanical (imperial) horsepower.
FAQ
How many horsepowers in a watt?
1 W = 0.001341022 hp.
How do I convert watt to horsepower?
Multiply the watt value by 0.001341022. For example, 10 W × 0.001341022 = 0.01341022 hp.
Where does the factor come from?
The conversion factor is defined in BIPM SI Brochure; both units are power units converted through watt.
Related conversions
Conversion factors: BIPM SI Brochure. Computed by the same engine that powers the app.
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