How to convert horsepower to kilowatts
- Type the value in horsepower (hp) in the box above.
- The result in kilowatts appears instantly, along with the same value in every other unit of power.
- Press ⇄ to convert the other way.
Formula
kW = hp × 0.7457 (mechanical horsepower). So 1 hp = 0.7457 kW, and 150 hp = 111.855 kW.
Horsepower to kilowatts is the reverse of what European car documents show: engine power is officially stated in kW there, while brochures and enthusiasts quote horsepower. One mechanical (imperial) horsepower is 745.7 W. The metric horsepower (PS, CV) used in Europe is slightly smaller at 735.5 W, so 100 PS is 73.5 kW but 100 hp is 74.6 kW.
hp to kW conversion chart
| Horsepower | Kilowatts |
|---|---|
| 1 hp | 0.7457 kW |
| 5 hp | 3.7285 kW |
| 10 hp | 7.457 kW |
| 50 hp | 37.285 kW |
| 100 hp | 74.57 kW |
| 150 hp | 111.855 kW |
| 200 hp | 149.14 kW |
| 300 hp | 223.71 kW |
| 400 hp | 298.28 kW |
| 500 hp | 372.85 kW |
| 1,000 hp | 745.7 kW |
FAQ
How many kW is 150 hp?
111.9 kW.
How do I convert hp to kW?
Use kW = hp × 0.7457 (mechanical horsepower). Or type the value above and the converter does it for you.
How do I convert kW back to hp?
Multiply by 1.34102, or press the ⇄ button in the converter.