Convert Watts to Horsepower
1 watt = 0.001341022 horsepower. Type any value below to convert in either direction — the calculation happens in your browser.
Watts to Horsepower formula
Multiply the number of watts by 0.001341022 to get horsepower.
horsepower = watts × 0.001341022To go the other way: divide the number of horsepower by 0.001341022, or multiply by 745.699872.
watts = horsepower ÷ 0.001341022Watts to Horsepower conversion table
| Watts | Horsepower |
|---|---|
| 1 W | 0.001341022 hp |
| 2 W | 0.002682044 hp |
| 3 W | 0.004023066 hp |
| 4 W | 0.005364088 hp |
| 5 W | 0.00670511 hp |
| 6 W | 0.008046133 hp |
| 7 W | 0.009387155 hp |
| 8 W | 0.01072818 hp |
| 9 W | 0.0120692 hp |
| 10 W | 0.01341022 hp |
| 15 W | 0.02011533 hp |
| 20 W | 0.02682044 hp |
| 25 W | 0.03352555 hp |
| 30 W | 0.04023066 hp |
| 40 W | 0.05364088 hp |
| 50 W | 0.0670511 hp |
| 75 W | 0.1005767 hp |
| 100 W | 0.1341022 hp |
| 250 W | 0.3352555 hp |
| 500 W | 0.670511 hp |
| 1,000 W | 1.341022 hp |
Horsepower to Watts conversion table
| Horsepower | Watts |
|---|---|
| 1 hp | 745.699872 W |
| 2 hp | 1,491.4 W |
| 3 hp | 2,237.1 W |
| 4 hp | 2,982.799 W |
| 5 hp | 3,728.499 W |
| 6 hp | 4,474.199 W |
| 7 hp | 5,219.899 W |
| 8 hp | 5,965.599 W |
| 9 hp | 6,711.299 W |
| 10 hp | 7,456.999 W |
About the watt
The watt is the SI unit of power — one joule per second.
About the horsepower
Mechanical horsepower is about 745.7 watts, still the standard rating for car engines in several markets.
Frequently asked questions
How many horsepower are in a watt?
There are 0.001341022 horsepower in one watt.
How many watts are in a horsepower?
There are 745.699872 watts in one horsepower.
Is this conversion exact?
The ratio between the watt and the horsepower is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 watts in horsepower?
10 watts equals 0.01341022 horsepower.