Calchy.

40 HP to kW

40 HP equals 29.83 kW.

Formula: HP × 0.7457 = kW

40 HP =
29.83kW
Metric HP (PS)
40.55 PS
Watts
29,828 W

40 HP is typical of small hatchbacks, economy cars, and small motorcycles.

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

Reference table

HP to kW near 40

horsepower (HP)kilowatts (kW)
10 HP7.46 kW
15 HP11.19 kW
20 HP14.91 kW
25 HP18.64 kW
30 HP22.37 kW
35 HP26.1 kW
40 HP29.83 kW
45 HP33.56 kW
50 HP37.29 kW
55 HP41.01 kW
60 HP44.74 kW
65 HP48.47 kW
70 HP52.2 kW
By use case

Popular HP values

Economy car
city / commuter
Sport car
hot hatch / sports sedan
Supercar
flagship performance
Hypercar
extreme performance
Other HP values
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FAQ

Frequently asked

How many kW is 40 HP?
40 mechanical horsepower = 29.83 kW. The exact factor is 1 HP = 0.7457 kW.
What is 40 HP in PS (metric horsepower)?
40 HP = 40.55 PS. Metric HP (PS/CV) is slightly smaller than mechanical HP: 1 PS = 0.9863 HP.
How do I convert 40 HP to kW without a calculator?
Multiply HP by 0.746 for a close approximation: 40 × 0.746 = 29.84 kW. The exact answer is 29.83 kW.
What kind of engine has 40 HP?
40 HP is typical of economy and compact cars — think Honda Civic base, Toyota Corolla, or VW Golf 1.0T.
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