How to convert watts to horsepower
To convert watts (W) to horsepower (hp), multiply the value in watts by 0.0013410220896.
hp = W × 0.0013410220896
Example: 10 W = 0.0134102209 hp.
You can also type 10 W to hp into the smart calculator, or mix units: 1 W + 1 hp.
Watts to Horsepower conversion table
| Watts | Horsepower |
|---|---|
| 0.01 W | 0.000013410221 hp |
| 0.1 W | 0.00013410221 hp |
| 0.25 W | 0.00033525552 hp |
| 0.5 W | 0.00067051104 hp |
| 1 W | 0.0013410221 hp |
| 2 W | 0.0026820442 hp |
| 3 W | 0.0040230663 hp |
| 4 W | 0.0053640884 hp |
| 5 W | 0.0067051104 hp |
| 6 W | 0.0080461325 hp |
| 7 W | 0.0093871546 hp |
| 8 W | 0.010728177 hp |
| 9 W | 0.012069199 hp |
| 10 W | 0.013410221 hp |
| 12 W | 0.016092265 hp |
| 15 W | 0.020115331 hp |
| 20 W | 0.026820442 hp |
| 25 W | 0.033525552 hp |
| 30 W | 0.040230663 hp |
| 40 W | 0.053640884 hp |
| 50 W | 0.067051104 hp |
| 60 W | 0.080461325 hp |
| 75 W | 0.10057666 hp |
| 100 W | 0.13410221 hp |
| 250 W | 0.33525552 hp |
| 500 W | 0.67051104 hp |
| 1,000 W | 1.3410221 hp |
Converting horsepower back to watts
1 hp = 745.6998716 W. See the Horsepower to Watts converter, or press the swap button above.
About the units
Watt (W)
The SI unit of power: one joule per second.
Horsepower (hp)
Mechanical (imperial) horsepower: 550 foot-pounds per second, about 745.7 watts.
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 horsepower are in a watt?
One watt (W) equals 0.00134102209 horsepower (hp).
How do I convert watts to horsepower?
To convert watts to horsepower, multiply the value in watts by 0.0013410220896. The formula is hp = W × 0.0013410220896. For example, 10 W = 0.013410221 hp.
What is 10 W in hp?
10 watts is 0.0134102209 horsepower.
Which is bigger, a watt or a horsepower?
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 W to hp 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.