horsepower to watts Converter
Convert horsepower to watts instantly with a reference conversion table.
| horsepower | watts |
|---|
How to convert horsepower to watts
Enter your value
Type the number of horsepower you want to convert into the left box. The result in watts appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — watts to horsepower. Your current value carries across so you don't have to re-enter anything.
About horsepower and watts
horsepower and watts are common power measurements.
1 hp = 745.7 W (mechanical, used in the UK and US). Metric horsepower (PS) is 735.5 W — used by most European car manufacturers. A '300 PS' German car has 296 hp in UK/US terms.
| horsepower | watts |
|---|---|
| 0.1 | 74.57 |
| 0.5 | 372.9 |
| 1 | 745.7 |
| 1.34 | 999.2 |
| 2 | 1491 |
| 5 | 3728 |
Frequently asked questions
How do I convert horsepower to watts?
To convert horsepower to watts, multiply by 745.7. Or use the calculator above for instant results.
How many watts are in 1 horsepower?
1 horsepower equals 745.7 watts.
Is the horsepower to watts converter free?
Yes, the horsepower to watts converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.