Watts to Mechanical horsepower formula
mechanical horsepower = watts × 0.00134102
Multiply the number of watts by 0.00134102 to get mechanical horsepower. To go the other way, multiply by 745.7 instead, or use the hp to watts converter.
Watts to Mechanical horsepower conversion table
Common watts to hp values, rounded for reading. The converter above keeps full precision.
| Watts | Mechanical horsepower |
|---|---|
| 1 W | 0.00134102 hp |
| 10 W | 0.0134102 hp |
| 50 W | 0.0670511 hp |
| 100 W | 0.134102 hp |
| 250 W | 0.335256 hp |
| 500 W | 0.670511 hp |
| 750 W | 1.00577 hp |
| 1,000 W | 1.34102 hp |
| 1,500 W | 2.01153 hp |
| 2,000 W | 2.68204 hp |
| 5,000 W | 6.70511 hp |
| 10,000 W | 13.4102 hp |
| 12,000 W | 16.0923 hp |
| 18,000 W | 24.1384 hp |
| 24,000 W | 32.1845 hp |
Worked example
To convert 500 W to mechanical horsepower, multiply by 0.00134102: the result is 0.670511 hp. Mechanical horsepower and metric horsepower are different units. BTU per hour is a power rate; BTU by itself is energy.
Frequently asked questions
How many mechanical horsepower are in a watt?
One watt equals 0.00134102 mechanical horsepower (1 W = 0.00134102 hp).
What is 500 watts in mechanical horsepower?
500 W converts to 0.670511 hp. Enter any other value in the converter above to see it recalculated instantly.
How do I convert mechanical horsepower back to watts?
Reverse the calculation: one mechanical horsepower equals 745.7 watts. You can also swap the units in the converter or open the hp to watts page.
Related power conversions
Need a different pair? Open the full power converter to choose any two units.