How to convert horsepower to watts
To convert horsepower (hp) to watts (W), multiply the value in horsepower by 745.699871582.
W = hp × 745.699871582
Example: 10 hp = 7,456.998716 W.
You can also type 10 hp to W into the smart calculator, or mix units: 1 hp + 1 W.
Horsepower to Watts conversion table
| Horsepower | Watts |
|---|---|
| 0.01 hp | 7.4569987 W |
| 0.1 hp | 74.569987 W |
| 0.25 hp | 186.42497 W |
| 0.5 hp | 372.84994 W |
| 1 hp | 745.69987 W |
| 2 hp | 1,491.3997 W |
| 3 hp | 2,237.0996 W |
| 4 hp | 2,982.7995 W |
| 5 hp | 3,728.4994 W |
| 6 hp | 4,474.1992 W |
| 7 hp | 5,219.8991 W |
| 8 hp | 5,965.599 W |
| 9 hp | 6,711.2988 W |
| 10 hp | 7,456.9987 W |
| 12 hp | 8,948.3985 W |
| 15 hp | 11,185.498 W |
| 20 hp | 14,913.997 W |
| 25 hp | 18,642.497 W |
| 30 hp | 22,370.996 W |
| 40 hp | 29,827.995 W |
| 50 hp | 37,284.994 W |
| 60 hp | 44,741.992 W |
| 75 hp | 55,927.49 W |
| 100 hp | 74,569.987 W |
| 250 hp | 186,424.97 W |
| 500 hp | 372,849.94 W |
| 1,000 hp | 745,699.87 W |
Converting watts back to horsepower
1 W = 0.00134102209 hp. See the Watts to Horsepower converter, or press the swap button above.
About the units
Horsepower (hp)
Mechanical (imperial) horsepower: 550 foot-pounds per second, about 745.7 watts.
Watt (W)
The SI unit of power: one joule per second.
Power is the rate at which energy is used or produced. The SI unit is the watt, one joule per second. Engines are rated in horsepower or kilowatts, and air conditioners in BTU per hour or tons of refrigeration.
Questions and answers
How many watts are in a horsepower?
One horsepower (hp) equals 745.6998716 watts (W).
How do I convert horsepower to watts?
To convert horsepower to watts, multiply the value in horsepower by 745.699871582. The formula is W = hp × 745.699871582. For example, 10 hp = 7,456.9987 W.
What is 10 hp in W?
10 horsepower is 7,456.998716 watts.
Which is bigger, a horsepower or a watt?
A horsepower is bigger: 1 hp = 745.6998716 W.
What is the difference between hp and PS?
Mechanical horsepower (hp) is about 745.7 W. Metric horsepower (PS, CV) is 735.5 W, about 1.4% less.
Does this hp to W converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.