Horsepower to Kilowatts Converter
Convert horsepower (mechanical, 550 ft·lbf/s) (hp) to kilowatts (kW), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a power, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 hp = 0.745699871582 kW
- 1 × 0.745699871582 = 0.745699871582 kW
How to convert horsepower to kilowatts
1 hp = 0.745699871582 kW, so multiply by 0.745699871582 to go from horsepower (mechanical, 550 ft·lbf/s) to kilowatts. Going the other way, 1 kW = 1.3410220896 hp.
kW = hp × 0.745699871582 hp = kW × 1.3410220896
Worked example:
1 hp = 0.745699871582 kW 5 × 0.745699871582 = 3.72849935791 kW
Horsepower to kilowatts table
| Horsepower | Kilowatts |
|---|---|
| 1 hp | 0.745699871582 kW |
| 2 hp | 1.49139974316 kW |
| 3 hp | 2.23709961475 kW |
| 4 hp | 2.98279948633 kW |
| 5 hp | 3.72849935791 kW |
| 6 hp | 4.47419922949 kW |
| 7 hp | 5.21989910108 kW |
| 8 hp | 5.96559897266 kW |
| 9 hp | 6.71129884424 kW |
| 10 hp | 7.45699871582 kW |
| 15 hp | 11.1854980737 kW |
| 20 hp | 14.9139974316 kW |
| 25 hp | 18.6424967896 kW |
| 30 hp | 22.3709961475 kW |
| 40 hp | 29.8279948633 kW |
| 50 hp | 37.2849935791 kW |
| 75 hp | 55.9274903687 kW |
| 100 hp | 74.5699871582 kW |
| 250 hp | 186.424967896 kW |
| 500 hp | 372.849935791 kW |
| 1000 hp | 745.699871582 kW |
About the units
- Horsepower (hp)
- Horsepower (mechanical, 550 ft·lbf/s), a US customary unit. Exact from 550 × 0.3048 m × 0.45359237 kg × 9.80665 m/s² per second. Definition: NIST SP 811 Appendix B.9 (horsepower, 550 ft·lbf/s).
- Kilowatts (kW)
- Kilowatts, a metric unit. Definition: BIPM SI Brochure (SI prefixes).