Watt to Horsepower Converter
Convertisseur de Puissance Gratuit, Convertissez Watts, Kilowatts, Chevaux-Vapeur et BTU/h
Watt
- Symbol
- W
- System
- Metric/Imperial
- Dimension
- Various
Horsepower
- Symbol
- hp
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Watt | Horsepower | Horsepower | Watt |
|---|---|---|---|
| 1 | 0.0013410219 | 1 | 745.7 |
| 2 | 0.0026820437 | 2 | 1491.4 |
| 3 | 0.0040230656 | 3 | 2237.1 |
| 5 | 0.0067051093 | 5 | 3728.5 |
| 10 | 0.0134102186 | 10 | 7457 |
| 25 | 0.0335255465 | 25 | 18642.5 |
| 50 | 0.0670510929 | 50 | 37285 |
| 100 | 0.1341021859 | 100 | 74570 |
| 500 | 0.6705109293 | 500 | 372850 |
| 1000 | 1.3410218587 | 1000 | 745700 |
Conversion Formula
Horsepower = Watt × 0.0013410219
Watt = Horsepower × 745.7
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.0013410219.
How to convert Watt to Horsepower
Multiply the value in watt by 0.0013410219 to get horsepower. For example, 5 Watt = 0.0067051093 Horsepower. All results in the puissance converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.00 too early — keep full precision until the final display. For puissance, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Horsepower in 1 Watt?
- 1 Watt = 0.0013410219 Horsepower.
- How many Watt in 1 Horsepower?
- 1 Horsepower = 745.7 Watt.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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