1 watt 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
Values either side of 1 W.
| Watts (W) | Horsepower (hp) |
|---|---|
| -4 | -0.005364 |
| -3.5 | -0.004694 |
| -3 | -0.004023 |
| -2.5 | -0.003353 |
| -2 | -0.002682 |
| -1.5 | -0.002012 |
| -1 | -0.001341 |
| -0.5 | -0.000671 |
| 0 | 0 |
| 0.5 | 0.000671 |
| 1 | 0.001341 |
| 1.5 | 0.002012 |
| 2 | 0.002682 |
| 2.5 | 0.003353 |
| 3 | 0.004023 |
| 3.5 | 0.004694 |
| 4 | 0.005364 |
| 4.5 | 0.006035 |
| 5 | 0.006705 |
| 5.5 | 0.007376 |
| 6 | 0.008046 |
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.