Horsepower (mechanical) to Kilowatts
Type a value in Horsepower (mechanical) and get the result in Kilowatts, calculated exactly.
100 Horsepower (mechanical) ≈ 74.56998716 Kilowatts
Precision
Exact factorRounded for display to about 10 significant digits.
Slide rule
Drag to scrub · arrow keys step · Shift × 10Paper tape
ConvertThemAll
- Your conversions print here.
0 lines · kept on this device only
Formula
kW = hp × 0.745699871582
To convert Horsepower (mechanical) to Kilowatts, multiply the value by 0.745699871582.
Worked examples
- 1 hp × 0.745699871582 ≈ 0.7456998716 kW
- 100 hp × 0.745699871582 ≈ 74.56998716 kW
- 50 hp × 0.745699871582 ≈ 37.28499358 kW
This factor is exact by definition.
Conversion table
| Horsepower (mechanical) (hp) | Kilowatts (kW) |
|---|---|
| 1 | ≈ 0.7456999 |
| 2 | ≈ 1.4914 |
| 3 | ≈ 2.2371 |
| 4 | ≈ 2.982799 |
| 5 | ≈ 3.728499 |
| 6 | ≈ 4.474199 |
| 7 | ≈ 5.219899 |
| 8 | ≈ 5.965599 |
| 9 | ≈ 6.711299 |
| 10 | ≈ 7.456999 |
| 15 | ≈ 11.1855 |
| 20 | ≈ 14.914 |
| 25 | ≈ 18.6425 |
| 30 | ≈ 22.371 |
| 40 | ≈ 29.82799 |
| 50 | ≈ 37.28499 |
| 60 | ≈ 44.74199 |
| 70 | ≈ 52.19899 |
| 75 | ≈ 55.92749 |
| 80 | ≈ 59.65599 |
| 90 | ≈ 67.11299 |
| 100 | ≈ 74.56999 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Kilowatts to Horsepower (mechanical)
| Kilowatts (kW) | Horsepower (mechanical) (hp) |
|---|---|
| 1 | ≈ 1.341022 |
| 2 | ≈ 2.682044 |
| 3 | ≈ 4.023066 |
| 4 | ≈ 5.364088 |
| 5 | ≈ 6.70511 |
| 6 | ≈ 8.046133 |
| 7 | ≈ 9.387155 |
| 8 | ≈ 10.72818 |
| 9 | ≈ 12.0692 |
| 10 | ≈ 13.41022 |
| 15 | ≈ 20.11533 |
| 20 | ≈ 26.82044 |
| 25 | ≈ 33.52555 |
| 30 | ≈ 40.23066 |
| 40 | ≈ 53.64088 |
| 50 | ≈ 67.0511 |
| 60 | ≈ 80.46133 |
| 70 | ≈ 93.87155 |
| 75 | ≈ 100.5767 |
| 80 | ≈ 107.2818 |
| 90 | ≈ 120.692 |
| 100 | ≈ 134.1022 |
Unit definitions
- Horsepower (mechanical) hp
- 550 foot-pounds per second: exactly 745.69987158227022 watts.
- Kilowatts kW
- Exactly 1000 watts.
Questions people ask
Horsepower (mechanical) to Kilowatts: what is the conversion factor?
One hp is ≈ 0.7456998716 kW.
How do I convert Horsepower (mechanical) to Kilowatts?
Use the formula above. For example, 100 hp = ≈ 74.56998716 kW.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.