Convert watts to horsepower
Watt (W) to horsepower (hp). One watt equals 0.001341 horsepower.
Formula
Watt to horsepower conversion table
| Watts | Horsepower | Horsepower | Watts |
|---|---|---|---|
| 1 W | 0.001341 hp | 1 hp | 745.7 W |
| 2 W | 0.002682 hp | 2 hp | 1491.4 W |
| 3 W | 0.004023 hp | 3 hp | 2237.1 W |
| 5 W | 0.006705 hp | 5 hp | 3728.5 W |
| 10 W | 0.01341 hp | 10 hp | 7457 W |
| 20 W | 0.02682 hp | 20 hp | 14914 W |
| 50 W | 0.067051 hp | 50 hp | 37284.99 W |
| 100 W | 0.134102 hp | 100 hp | 74569.99 W |
| 500 W | 0.670511 hp | 500 hp | 372849.94 W |
| 1000 W | 1.341 hp | 1000 hp | 745699.87 W |
To convert watts to horsepower, divide the number of watts by 745.7. One watt equals 0.001341 horsepower, and one horsepower equals 745.7 watts, so the relationship is fixed and exact. As a worked example, 10 W comes to 0.01341 hp. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a power conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common watt values already worked out in horsepower, plus the reverse horsepower to watt direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many horsepower are in a watt?
One watt equals 0.001341 horsepower. The ratio is constant, so you can multiply any number of watts by 0.001341 to get horsepower.
What is the formula to convert watts to horsepower?
Use horsepower = watts ÷ 745.7. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert horsepower back to watts?
Go the other way by using one horsepower equals 745.7 watts. You can also press the swap button in the converter above to flip the direction in one click.
Is this watt to horsepower converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.