Conversion Formula
$$P_{\text{kW}} = P_{\text{hp}} \times 0.74570$$
Multiply horsepower by 0.74570 to get kilowatts.
hp to kW Conversion Table
| Horsepower (Mechanical) (hp) | Kilowatt (kW) |
|---|---|
| 0.1 | 0.07457 |
| 0.5 | 0.37285 |
| 1 | 0.7457 |
| 2 | 1.4914 |
| 5 | 3.7285 |
| 10 | 7.457 |
| 25 | 18.6425 |
| 50 | 37.285 |
| 100 | 74.57 |
| 250 | 186.425 |
| 500 | 372.85 |
| 1,000 | 745.7 |
hp to kW in Engineering
Power conversions are critical for motor selection, HVAC load calculations, electrical system design, and energy analysis. Engineers frequently convert between horsepower, kilowatts, and BTU/h across disciplines.
Horsepower (Mechanical): Imperial mechanical horsepower (550 ft路lbf/s). Standard for motors and engines in US practice.
Kilowatt: Common unit for electrical motors, generators, and building electrical loads.