Convert watts to horsepower and horsepower to watts instantly. Bidirectional power converter with formula and common values.
To convert watts to mechanical horsepower, multiply by 0.00134102 or divide by 745.7. This is useful for comparing electric motor specs with traditional engine ratings.
| Watts | Horsepower |
|---|---|
| 250 | 0.335 |
| 500 | 0.671 |
| 746 | 1.000 |
| 1,500 | 2.012 |
| 3,700 | 4.962 |
| 7,500 | 10.058 |
| 50,000 | 67.051 |
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One watt equals approximately 0.00134102 mechanical horsepower. It takes about 745.7 watts to make one horsepower.
Multiply the watt rating by 0.00134102, or equivalently divide by 745.7. For example, 2,500 W = 3.353 hp.
The unit conversion is the same regardless of motor type. However, electric motors are typically more efficient at converting input power to output power than combustion engines.
Watts are the SI standard unit of power and are more precise for small values. Expressing a 50 W motor as 0.067 hp would be less intuitive for most applications.