Horsepower to Watts Converter
Convert horsepower (hp) to watts. 1 mechanical horsepower equals 745.7 watts.
Formula
Watts = HP × 745.7
How to Convert HP to Watts
Multiply horsepower by 745.7 to get watts. This uses mechanical (imperial) horsepower.
Example: 5 hp = 5 × 745.7 = 3,728.5 W (3.73 kW)
Types of Horsepower
- Mechanical HP: 745.7 W (most common, used in engines)
- Electrical HP: 746 W
- Metric HP (PS): 735.5 W
Conversion Table
| Horsepower (hp) | Watts (W) |
|---|---|
| 0.5 | 372.85 |
| 1 | 745.7 |
| 1.5 | 1118.55 |
| 2 | 1491.4 |
| 3 | 2237.1 |
| 5 | 3728.5 |
| 10 | 7457 |
| 100 | 74570 |
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Last updated: 2026-08-08