Convert watts to hp
watts to horsepower. Enter a value to convert, or use the watts to hp chart further down the page.
1 watt equals 0.00134102 horsepower. Going the other way, 1 horsepower = 745.7 watts.
How to convert watts to hp
To convert watts to horsepower, multiply the watt value by 0.00134102209. You can also divide by 745.6998716 to get the same answer.
hp = W × 0.00134102209
Worked example
Convert 15 W to horsepower:
15 W = 0.0201153 hp
watts to hp conversion chart
Use this watts to hp table for quick reference without typing anything.
| watts (W) | horsepower (hp) |
|---|---|
| 0.01 W | 0.0000134102 hp |
| 0.1 W | 0.000134102 hp |
| 1 W | 0.00134102 hp |
| 2 W | 0.00268204 hp |
| 3 W | 0.00402307 hp |
| 5 W | 0.00670511 hp |
| 10 W | 0.0134102 hp |
| 20 W | 0.0268204 hp |
| 50 W | 0.0670511 hp |
| 100 W | 0.134102 hp |
| 1,000 W | 1.34102 hp |
What is a watt?
The watt is the SI unit of power: one joule per second.
What is a horsepower?
Mechanical horsepower is defined as 550 foot-pounds per second, about 745.7 watts. It is the standard unit for engine output in the US and UK.
Frequently asked questions
How many hp are in a watt?
1 watts equals 0.00134102 hp. Going the other way, 1 hp is 745.7 watts.
How do you convert watts to hp?
To convert watts to horsepower, multiply the watt value by 0.00134102209. You can also divide by 745.6998716 to get the same answer.
What is 10 watts in hp?
10 watts equals 0.0134102 hp. The conversion chart on this page lists the other values people look up most often.
Related power conversions
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