Convert Horsepower to Kilowatt
Convert Horsepower to Kilowatt instantly. 1 hp = 0.7457 kW. Formula, worked examples and a quick reference table.
Last updated
One horsepower equals 0.7457 kilowatt. To convert any number of horsepowers to kilowatts, multiply by 0.74569987.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Horsepower to Kilowatt formula
To go the other way, use horsepower = kilowatt ÷ 0.74569987.
About these units
James Watt defined horsepower to market steam engines against the draught horses they replaced. Mechanical horsepower is about 745.7 watts.
Horsepower to Kilowatt conversion table
| Horsepower | Kilowatt |
|---|---|
| 1 hp | 0.7457 kW |
| 2 hp | 1.4914 kW |
| 3 hp | 2.2371 kW |
| 5 hp | 3.7285 kW |
| 10 hp | 7.457 kW |
| 20 hp | 14.914 kW |
| 25 hp | 18.6425 kW |
| 50 hp | 37.285 kW |
| 100 hp | 74.57 kW |
| 250 hp | 186.425 kW |
| 500 hp | 372.8499 kW |
| 1,000 hp | 745.6999 kW |
Frequently asked questions
How many kilowatts are in a horsepower? +
There are 0.7457 kilowatts in one horsepower.
What is 10 hp in kW? +
10 hp equals 7.457 kW. Multiply 10 by 0.74569987.
How do I convert kilowatt back to horsepower? +
Use horsepower = kilowatt ÷ 0.74569987. The converter above handles both directions, or see our dedicated Kilowatt to Horsepower page.