How many kW is 18 HP?

18 mechanical horsepower = 13.42 kW. The exact factor is 1 HP = 0.7457 kW.

What is 18 HP in PS (metric horsepower)?

18 HP = 18.25 PS. Metric HP (PS/CV) is slightly smaller than mechanical HP: 1 PS = 0.9863 HP.

Multiply HP by 0.746 for a close approximation: 18 × 0.746 = 13.43 kW. The exact answer is 13.42 kW.

18 HP is small-engine territory — generators, lawn equipment, scooters, and small outboard motors.

18 HP equals 13.42 kW.

Formula: HP × 0.7457 = kW

18 HP =

13.42kW

Metric HP (PS)

18.25 PS

Watts

13,422.6 W

18 HP is typical of small engines — lawn mowers, generators, scooters, and outboard motors.

Computed to 3 decimal places using factor 0.7457. For engineering or safety-critical uses verify against a calibrated reference.

Reference table

horsepower (HP)	kilowatts (kW)	Metric HP (PS)	Watts
8 HP	5.97 kW	8.11 PS	5,965.6 W
13 HP	9.69 kW	13.18 PS	9,694.1 W
18 HP	13.42 kW	18.25 PS	13,422.6 W
23 HP	17.15 kW	23.32 PS	17,151.1 W
28 HP	20.88 kW	28.39 PS	20,879.6 W
33 HP	24.61 kW	33.46 PS	24,608.1 W
38 HP	28.34 kW	38.53 PS	28,336.6 W
43 HP	32.07 kW	43.6 PS	32,065.1 W
48 HP	35.79 kW	48.67 PS	35,793.6 W

By use case

Economy car

city / commuter

Sport car

hot hatch / sports sedan

Supercar

flagship performance

Hypercar

extreme performance

Other HP values

Try any value

Interactive HP ↔ kW converter

Enter any value, get instant results across all units.

FAQ

How many kW is 18 HP?: 18 mechanical horsepower = 13.42 kW. The exact factor is 1 HP = 0.7457 kW.
What is 18 HP in PS (metric horsepower)?: 18 HP = 18.25 PS. Metric HP (PS/CV) is slightly smaller than mechanical HP: 1 PS = 0.9863 HP.
How do I convert 18 HP to kW without a calculator?: Multiply HP by 0.746 for a close approximation: 18 × 0.746 = 13.43 kW. The exact answer is 13.42 kW.
What kind of engine has 18 HP?: 18 HP is small-engine territory — generators, lawn equipment, scooters, and small outboard motors.

More conversion tools