Watts to Horsepower Converter
Convert power from watts (W) to different types of horsepower.
How to Convert Watts to Horsepower
To convert Watts (W) to Horsepower (HP), use the following formulas based on the type of horsepower:
Watts to Horsepower Conversion
One mechanical or hydraulic horsepower is equal to 745.699872 watts:
1 hp(I) = 745.699872 WSo the power conversion of watts to horsepower is given by:
P(hp) = P(W) / 745.699872Example
Convert 10W to mechanical horsepower:
P(hp) = 10W / 745.699872 = 0.01341 hpWatts to Electrical Horsepower
One electrical horsepower is equal to 746 watts:
1 hp(E) = 746 WSo the power conversion of watts to horsepower is given by:
P(hp) = P(W) / 746Example
Convert 10W to electrical horsepower:
P(hp) = 10W / 746 = 0.013405 hpWatts to Metric Horsepower
One metric horsepower is equal to 735.49875 watts:
1 hp(M) = 735.49875 WSo the power conversion of watts to horsepower is given by:
P(hp) = P(W) / 735.49875Example
Convert 10W to metric horsepower:
P(hp) = 10W / 735.49875 = 0.013596 hpFor more information on horsepower, visit the Wikipedia page on Horsepower.
Watts to Horsepower Conversion Table
| Watts [W] | Mechanical Horsepower [hp(I)] | Electric Horsepower [hp(E)] | Metric Horsepower [hp(M)] |
|---|---|---|---|
| 1 W | 0.001341 hp | 0.001340 hp | 0.001360 hp |
| 2 W | 0.002682 hp | 0.002681 hp | 0.002719 hp |
| 3 W | 0.004023 hp | 0.004021 hp | 0.004079 hp |
| 4 W | 0.005364 hp | 0.005362 hp | 0.005438 hp |
| 5 W | 0.006705 hp | 0.006702 hp | 0.006798 hp |
| 6 W | 0.008046 hp | 0.008043 hp | 0.008158 hp |
| 7 W | 0.009387 hp | 0.009383 hp | 0.009517 hp |
| 8 W | 0.010728 hp | 0.010724 hp | 0.010877 hp |
| 9 W | 0.012069 hp | 0.012064 hp | 0.012237 hp |
| 10 W | 0.013410 hp | 0.013405 hp | 0.013596 hp |
| 20 W | 0.026820 hp | 0.026810 hp | 0.027192 hp |
| 30 W | 0.040231 hp | 0.040214 hp | 0.040789 hp |
| 40 W | 0.053641 hp | 0.053619 hp | 0.054385 hp |
| 50 W | 0.067051 hp | 0.067024 hp | 0.067981 hp |
| 60 W | 0.080461 hp | 0.080429 hp | 0.081577 hp |
| 70 W | 0.093871 hp | 0.093834 hp | 0.095174 hp |
| 80 W | 0.107282 hp | 0.107239 hp | 0.108770 hp |
| 90 W | 0.120692 hp | 0.120643 hp | 0.122366 hp |
| 100 W | 0.134022 hp | 0.134048 hp | 0.135962 hp |
| 200 W | 0.268204 hp | 0.268097 hp | 0.271924 hp |
| 300 W | 0.402307 hp | 0.402145 hp | 0.407886 hp |
| 400 W | 0.536409 hp | 0.536193 hp | 0.543849 hp |
| 500 W | 0.670511 hp | 0.670241 hp | 0.679811 hp |
