Horsepower to Watt Calculator
Convert horsepower (HP) to watts (W).
Horsepower to Watts (HP to W) Conversion
Figuring out how horsepower ties into watts is key for things like cars and industrial equipment.
1. Imperial/Mechanical HP to Watts
Formula:
P(W) = 745.7 × P(hp)
Example
Converting a 10 hp engine to watts:
P(W) = 745.7 × 10 hp = 7,457 W
That’s enough power to light up about 124 sixty-watt bulbs!
2. Electrical HP to Watts
The Electrical Formula:
P(W) = 746 × P(hp)
Example
For a 10 hp electric motor:
P(W) = 746 × 10 hp = 7,460 W
This could power a small home’s worth of appliances!
3. Metric HP to Watts
The European Standard:
P(W) = 735.5 × P(hp)
Example
For a 10 hp European machine:
P(W) = 735.5 × 10 hp = 7,355 W
That’s about 7.4 kilowatts of power!
Horsepower to Watt Conversion Table
| Horsepower (hp) | Watts (W) |
|---|---|
| 1 hp(I) | 745.7 W |
| 1 hp(E) | 746 W |
| 1 hp(M) | 735.5 W |
| 0.1 hp(I) | 74.57 W |
| 0.1 hp(E) | 74.6 W |
| 0.1 hp(M) | 73.55 W |
| 0.5 hp(I) | 372.85 W |
| 0.5 hp(E) | 373 W |
| 0.5 hp(M) | 367.75 W |
| 2 hp(I) | 1491.4 W |
| 2 hp(E) | 1492 W |
| 2 hp(M) | 1471 W |
| 5 hp(I) | 3730.5 W |
| 5 hp(E) | 3735 W |
| 5 hp(M) | 3675 W |
| 10 hp(I) | 7457 W |
| 10 hp(E) | 7460 W |
| 10 hp(M) | 7355 W |
