Convert Horsepower (mechanical) to Kilowatts
hp to kW · power conversion
What are horsepower (mechanical) and kilowatts?
Mechanical horsepower equals about 745.7 watts, the traditional measure of engine output. A kilowatt is 1,000 watts, used for appliances, motors, and EV charging. For reference: a typical car engine makes 100–150 kW (about 134–201 hp).
How to convert horsepower (mechanical) to kilowatts
1 hp = 0.7457 kW. To convert, multiply the number of horsepower (mechanical) by 0.7457. For example, 5 hp = 3.7285 kW, and 20 hp = 14.914 kW. To go the other way, multiply kilowatts by 1.34102 (since 1 kW = 1.34102 hp).
Horsepower (mechanical) to Kilowatts conversion table
| Horsepower (mechanical) (hp) | Kilowatts (kW) |
|---|---|
| 1 | 0.7457 |
| 10 | 7.457 |
| 100 | 74.57 |
| 500 | 372.85 |
| 1,000 | 745.7 |
| 2,000 | 1,491.4 |
| 5,000 | 3,728.5 |
FAQ
What is 1 hp in kW?
1 hp = 0.7457 kW. To convert any amount, multiply the number of horsepower (mechanical) by 0.7457.
How do I convert kilowatts back to horsepower (mechanical)?
Go the other way: 1 kW = 1.34102 hp, so multiply kilowatts by 1.34102 to get horsepower (mechanical).
Is a horsepower (mechanical) bigger than a kilowatt?
No — 1 hp is the smaller unit, equal to 0.7457 kW (it takes 1.34102 hp to make one kW).
Are these power conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.