Watts to Horsepower Converter
Convert watts (W) to horsepower (hp) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Watts to hp formula
hp = W ÷ 745.69987158227
1 watt = 0.001341 horsepower · 1 horsepower = 745.7 watts
To convert watts to horsepower, divide the value by 745.69987158227. For example, 1000 W:
hp = 1000 ÷ 745.69987158227hp = 1.341022
So 1000 W = 1.34 hp.
Mental math shortcut
Quick mental estimate: divide by 750. For 1000 W that gives about 1.33 hp — within 1% of the exact answer. Use the exact formula when precision matters.
Watts to hp conversion table
hp back to Watts
The same values converted the other way, rounded for everyday use:
| Horsepower | Watts |
|---|---|
| 0.1341 hp | 100 W |
| 0.6705 hp | 499.99 W |
| 1 hp | 745.7 W |
| 1.34 hp | 999.24 W |
| 2.68 hp | 1998.48 W |
| 6.71 hp | 5003.65 W |
About the units
Watts (W)
Horsepower (hp)
Mechanical horsepower is about 745.7 watts. It is the traditional unit of engine power in the US.
Frequently asked questions
How many horsepower are in a watt?
One watt equals 0.001341 horsepower.
What is 1000 Watts in hp?
1000 W = 1.34 hp.
How do I convert hp back to Watts?
Multiply the horsepower by 745.69987158227. Or use the Horsepower to Watts converter.