Hp to Kw ConverterRight in Your Browser
Convert horsepower (hp) to kilowatts (kW). Horsepower (hp) is the traditional engine-power unit of the US and UK, defined by James Watt as 550 foot-pounds per second. The kilowatt (kW) is 1,000 watts — how Europe rates car engines, EV chargers and heaters. Everything is calculated locally in your browser — no server, and it works offline.
0.7457 kW
in kilowatts (kilowatt)
To convert horsepower to kilowatts, multiply the horsepower value by 0.7457.
Switch to Kw to HpHp to Kw Chart
| Horsepower (hp) | Kilowatts (kW) |
|---|---|
| 1 | 0.7457 |
| 2 | 1.4914 |
| 3 | 2.2371 |
| 4 | 2.9828 |
| 5 | 3.7285 |
| 10 | 7.457 |
| 20 | 14.914 |
| 50 | 37.285 |
| 100 | 74.57 |
Frequently Asked Questions
How many kilowatts are in a horsepower?
One horsepower equals 0.7457 kilowatts (1 hp = 0.7457 kW). So to go from horsepower to kilowatts, multiply the horsepower value by 0.7457.
What is the formula to convert horsepower to kilowatts?
To convert horsepower to kilowatts, multiply the horsepower value by 0.7457. For example, 10 hp is 7.457 kW.
What is 150 horsepower in kilowatts?
150 horsepower — a compact car's engine — is 111.855 kilowatts. The converter above works for any value, entirely in your browser.
Is the horsepower to kilowatt conversion exact?
The factor used here is the defined value: 1 hp = 0.7456998716 kW. Results are rounded to six significant digits for readability, so for high-precision work use the full factor. This is the mechanical (imperial) horsepower of exactly 550 ft·lbf/s ≈ 745.7 W. The metric horsepower (PS/CV) used in continental Europe is slightly smaller at about 735.5 W.
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