Horsepower to Watt Converter
無料電力換算ツール, ワット、キロワット、马力、BTU/時を瞬時に換算
1Horsepower=745.7Watt
1 Watt = 0.0013410219 Horsepower
Horsepower
- Symbol
- hp
- System
- Metric/Imperial
- Dimension
- Various
Watt
- Symbol
- W
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Horsepower | Watt | Watt | Horsepower |
|---|---|---|---|
| 1 | 745.7 | 1 | 0.0013410219 |
| 2 | 1491.4 | 2 | 0.0026820437 |
| 3 | 2237.1 | 3 | 0.0040230656 |
| 5 | 3728.5 | 5 | 0.0067051093 |
| 10 | 7457 | 10 | 0.0134102186 |
| 25 | 18642.5 | 25 | 0.0335255465 |
| 50 | 37285 | 50 | 0.0670510929 |
| 100 | 74570 | 100 | 0.1341021859 |
| 500 | 372850 | 500 | 0.6705109293 |
| 1000 | 745700 | 1000 | 1.3410218587 |
Conversion Formula
Watt = Horsepower × 745.7
Horsepower = Watt × 0.0013410219
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 745.7.
How to convert Horsepower to Watt
Multiply the value in horsepower by 745.7 to get watt. For example, 5 Horsepower = 3728.5 Watt. All results in the 電力 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 745. too early — keep full precision until the final display. For 電力, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Watt in 1 Horsepower?
- 1 Horsepower = 745.7 Watt.
- How many Horsepower in 1 Watt?
- 1 Watt = 0.0013410219 Horsepower.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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