Convert watts to horsepower
1 W = 0.00134102 hp. Change the amount below, or read the formula and the reference table further down.
1 watt equals
horsepower
1 W = 0.00134102 hp
The formula
Watts and horsepower both measure power from the same zero, so a single multiplier does the job.
hp = W × 0.0013410221
Going the other way? Convert horsepower to watts.
Watts to horsepower table
Common values, rounded for reading.
| Watts (W) | Horsepower (hp) |
|---|---|
| 1 | 0.001341 |
| 2 | 0.002682 |
| 3 | 0.004023 |
| 4 | 0.005364 |
| 5 | 0.006705 |
| 6 | 0.008046 |
| 7 | 0.009387 |
| 8 | 0.010728 |
| 9 | 0.012069 |
| 10 | 0.01341 |
| 15 | 0.020115 |
| 20 | 0.02682 |
| 25 | 0.033526 |
| 30 | 0.040231 |
| 40 | 0.053641 |
| 50 | 0.067051 |
| 75 | 0.100577 |
| 100 | 0.134102 |
| 250 | 0.335256 |
| 500 | 0.670511 |
| 1,000 | 1.341 |
Questions people ask
- How many horsepower are in a watt?
- One watt equals 0.0013410221 horsepower.
- How do I convert watts to horsepower by hand?
- Multiply the number of watts by 0.0013410221. For a rough check, 0.001 is close enough for most everyday use.
- What is 1 watt in horsepower?
- 1 watt is 0.00134102 horsepower.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.