How many horsepower are in 1 kW?

1 kW = 1.341022 hp. Conversely: 1 hp = 0.7457 kW.

How do I convert kilowatts to horsepower?

Use the formula: hp = kW × 1.34102209. For example, 10 kW = 13.4102 hp. Or simply type a value into the calculator above.

Is the calculator accurate?

Yes. It uses exact international conversion factors and rounds the result to 6 decimal places.

Kilowatts to Horsepower (kW to hp)

A fast kilowatts-to-horsepower calculator – the result updates as you type.

Kilowatts (kW)

Horsepower (hp)

Swap units

1 kW = 1.341022 hp

1 kW = 1.341022 hp. Enter a value and get the result instantly. Below you will find the formula and a table of commonly used values.

Formula

hp = kW × 1.34102209

kW to hp table

kW	hp
1 kW	1.341 hp
2 kW	2.682 hp
5 kW	6.7051 hp
10 kW	13.4102 hp
20 kW	26.8204 hp
50 kW	67.0511 hp
100 kW	134.1022 hp
500 kW	670.511 hp
1,000 kW	1,341.0221 hp

Where it is used

Kilowatts are converted to horsepower when comparing car engines: Europe often quotes kW, while the USA and many listings use hp. This converter uses mechanical horsepower, equal to 745.7 W.

A quick mental shortcut

1 kW = 1.34102 hp. Roughly, multiply by 4/3 (about 1.33): 75 kW x 4/3 = 100 hp (the exact result is 100.58).

Exact examples: 100 kW x 1.34102 = 134.10 hp; 110 kW = 147.51 hp.

Good to know

Europe often uses metric horsepower (PS), equal to 735.5 W, so 100 kW is about 136 PS but only 134.1 hp. The difference is roughly 1.4%.