Convert horsepower to watts
1 hp = 745.7 W
1 W = 0.00134102 hp
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How to convert horsepower to watts
Multiply the value in horsepower by 745.699872 to get watts. As a formula: W = hp × 745.699872
Good to know
1 mechanical horsepower is 745.7 W, so 2 hp is 1,491.4 W. A metric horsepower (PS) is 735.5 W — about 1.4% less — so check which one a figure means.
horsepower to watts conversion table
| horsepower (hp) | watts (W) |
|---|---|
| 0.25 hp | 186.425 W |
| 0.5 hp | 372.85 W |
| 0.75 hp | 559.275 W |
| 1 hp | 745.7 W |
| 1.5 hp | 1,118.55 W |
| 2 hp | 1,491.4 W |
| 3 hp | 2,237.1 W |
| 5 hp | 3,728.5 W |
| 7.5 hp | 5,592.75 W |
| 10 hp | 7,457 W |
| 20 hp | 14,914 W |
Related conversions
Need other units? The full Power Unit Converter converts between every unit it supports, and the Unit Converters page lists the rest.
horsepower to watts — questions
How many watts are in 1 hp?
1 hp = 745.7 W. Multiply the value in horsepower by 745.699872 to get watts.
How do I convert horsepower to watts?
Multiply the value in horsepower by 745.699872. For example, 0.5 hp × 745.699872 = 372.85 W.
What is 0.5 hp in watts?
0.5 hp = 372.85 W.
What is 2 hp in watts?
2 hp = 1,491.4 W.
What is 5 hp in watts?
5 hp = 3,728.5 W.