Power conversion
1 watt (W) equals 0.00134102209 mechanical horsepower (hp(I)). Enter any value below to convert from W to hp(I).
Enter a value and choose units. Results update instantly.
1 W = 0.0013410221 hp(I)
| Unit | Value |
|---|---|
| Watt W | 1 |
| Kilowatt kW | 0.001 |
| Megawatt MW | 0.000001 |
| Milliwatt mW | 1,000 |
| Mechanical horsepower hp(I) | 0.0013410221 |
| Metric horsepower PS | 0.0013596216 |
| BTU (IT) per hour BTU/h | 3.4121416331 |
| Foot-pound per second ft·lb/s | 0.7375621493 |
Formula
Use this relationship for a direct conversion:
2 W = 0.0026820442 hp(I).
Horsepower type is always identified because mechanical and metric horsepower differ by about 1.4 percent.
Quick reference
| Watt (W) | Mechanical horsepower (hp(I)) |
|---|---|
| 0.01 | 0.0000134102 |
| 0.1 | 0.0001341022 |
| 1 | 0.0013410221 |
| 2 | 0.0026820442 |
| 5 | 0.0067051104 |
| 10 | 0.0134102209 |
| 25 | 0.0335255522 |
| 50 | 0.0670511045 |
| 100 | 0.134102209 |
| 1,000 | 1.3410220896 |
From unit
One joule per second.
Symbol: W
To unit
Exactly 550 foot-pounds force per second.
Symbol: hp(I)
Keep converting
Source
Definitions are checked against NIST SP 811: Power units. Calculations use full internal precision before display rounding.
View the complete power converterQuestions
Use the formula hp(I) = W x 0.00134102209. 1 watt (W) equals 0.00134102209 mechanical horsepower (hp(I)).
Horsepower type is always identified because mechanical and metric horsepower differ by about 1.4 percent.
