Power & Heat Flow Converter
Watts to Horsepower Converter
Convert electric motor and turbine wattage to mechanical horsepower.
Power & Heat Flow
(W)
Example: 100 W
(hp)
e.g. 0.1341hp
Standard: 1 hp ≈ 745.6998 W ≈ 0.7457 kW
Enter any number above to convert Watts to Horsepower. Click (i) for brief unit info.
Converting the other way?
Switch directly to the reverse calculator: Horsepower to Watts Converter
How to Convert Watt to Horsepower (Mechanical)
Official Mathematical Formula
hp = Watts ÷ 745.69987
Where the input value in W is transformed using the exact standardized conversion factor to produce the output in hp.
Practical Calculation Example
You can verify this calculation directly using our interactive tool above.
Quick Conversion Reference Table (W → hp)
Watt (W) | Horsepower (Mechanical) (hp) | Copy |
|---|---|---|
| 1 W | 0.001341 hp | |
| 2 W | 0.002682 hp | |
| 3 W | 0.0040231 hp | |
| 5 W | 0.0067051 hp | |
| 10 W | 0.01341 hp | |
| 15 W | 0.02012 hp | |
| 20 W | 0.02682 hp | |
| 25 W | 0.03353 hp | |
| 50 W | 0.06705 hp | |
| 75 W | 0.10058 hp | |
| 100 W | 0.1341 hp | |
| 250 W | 0.33526 hp | |
| 500 W | 0.67051 hp | |
| 1000 W | 1.34102 hp |
Watt to Horsepower (Mechanical) FAQs
1,000 Watts is equal to approximately 1.34 mechanical horsepower.