The short answer
- 1 kW ≈ 1.341022 hp
- 1 hp ≈ 0.7456999 kW
Worked example100 kW × 1.34102209 = 134.1022 hp
To convert kilowatts to horsepower, multiply the number of kilowatts by 1.34102209.
Kilowatt. The kilowatt is 1,000 watts. The watt is the SI unit of power, one joule per second.
Horsepower. Mechanical horsepower is 550 foot-pounds per second, about 745.7 watts. Metric horsepower (PS) is slightly smaller, about 735.5 watts.
| Kilowatts (kW) | Horsepower (hp) |
|---|---|
| 1 | 1.341022 |
| 5 | 6.70511 |
| 10 | 13.41022 |
| 25 | 33.52555 |
| 50 | 67.0511 |
| 55 | 73.75621 |
| 66 | 88.50746 |
| 75 | 100.5767 |
| 85 | 113.9869 |
| 90 | 120.692 |
| 100 | 134.1022 |
| 110 | 147.5124 |
| 125 | 167.6278 |
| 150 | 201.1533 |
| 200 | 268.2044 |
| 250 | 335.2555 |
| 300 | 402.3066 |
| 500 | 670.511 |
Values are rounded to 7 significant figures.
Multiply the number of kilowatts by 1.34102209. For example, 100 kW × 1.34102209 = 134.1022 hp.
One kilowatt is about 1.341022 horsepower.
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.