Watts to Horsepower Converter
How to convert watts to horsepower
horsepower = watts ÷ 745.699872
To convert watts to horsepower, divide the number of watts by 745.699872.
1 W = 0.00134102209 hp
Examples
- One kilowatt: 1,000 W ÷ 745.699872 = 1.34102209 hp
- 60 W ÷ 745.699872 = 0.0804613254 hp
Good to know
One mechanical horsepower is about 745.7 watts. Electric motors are sometimes rated using the rounded electrical horsepower of exactly 746 watts.
This is mechanical (imperial) horsepower, 550 ft·lbf/s or about 745.7 W. Metric horsepower (PS, CV) is about 1.4% smaller at 735.49875 W, and electric motors are sometimes rated in electrical horsepower of exactly 746 W.
Watts to horsepower conversion table
| Watts (W) | Horsepower (hp) |
|---|---|
| 1 W | 0.00134102209 hp |
| 2 W | 0.00268204418 hp |
| 5 W | 0.00670511045 hp |
| 10 W | 0.0134102209 hp |
| 20 W | 0.0268204418 hp |
| 50 W | 0.0670511045 hp |
| 75 W | 0.100576657 hp |
| 100 W | 0.134102209 hp |
| 150 W | 0.201153313 hp |
| 200 W | 0.268204418 hp |
| 250 W | 0.335255522 hp |
| 300 W | 0.402306627 hp |
| 500 W | 0.670511045 hp |
| 750 W | 1.00576657 hp |
| 1,000 W | 1.34102209 hp |
| 2,000 W | 2.68204418 hp |
| 5,000 W | 6.70511045 hp |
Unit definitions
- Watt (W)
- The watt is the SI unit of power, equal to one joule per second. It is used to rate electrical appliances, lighting and electronics.
- Horsepower (hp)
- Mechanical horsepower is defined as 550 foot-pounds force per second, exactly 745.69987158227022 watts. It is used for engine and motor ratings in the United States and United Kingdom.