Horsepower to Kilowatts

Convert hp to kW instantly — with a table, common power values, and a live calculator.

1 hp equals 0.746 kW.

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Convert any power

Result (kW)0.746 kW

hp to kW table

hpkW
1 hp0.746 kW
2 hp1.49 kW
3 hp2.24 kW
5 hp3.73 kW
10 hp7.46 kW
15 hp11.19 kW
20 hp14.91 kW
25 hp18.64 kW
30 hp22.37 kW
40 hp29.83 kW
50 hp37.28 kW
60 hp44.74 kW
75 hp55.93 kW
90 hp67.11 kW
100 hp74.57 kW
120 hp89.48 kW
150 hp111.85 kW
200 hp149.14 kW
250 hp186.42 kW
300 hp223.71 kW
400 hp298.28 kW
500 hp372.85 kW

kW to hp (reverse)

kWhp
1 kW1.34 hp
2 kW2.68 hp
3 kW4.02 hp
5 kW6.71 hp
10 kW13.41 hp
15 kW20.12 hp
20 kW26.82 hp
25 kW33.53 hp
30 kW40.23 hp
40 kW53.64 hp
50 kW67.05 hp
60 kW80.46 hp
75 kW100.58 hp
90 kW120.69 hp
100 kW134.1 hp
120 kW160.92 hp
150 kW201.15 hp
200 kW268.2 hp
250 kW335.26 hp
300 kW402.31 hp
400 kW536.41 hp
500 kW670.51 hp

Common power values

hpkW
5 hp3.73 kW
10 hp7.46 kW
25 hp18.64 kW
50 hp37.28 kW
75 hp55.93 kW
100 hp74.57 kW
120 hp89.48 kW
150 hp111.85 kW
200 hp149.14 kW
300 hp223.71 kW
400 hp298.28 kW
500 hp372.85 kW

How it scales

193756750255075100hp

100 kW in other units

134hp136PS100000W341214BTU/h

The ratio at a glance

1 hp0.75 kW

Kilowatts, PS, and hp — the key power units

Watts (W), kilowatts (kW), and megawatts (MW) are the SI units of power. There are also two different horsepower units that must not be confused: PS (metric horsepower, German Pferdestärke) equals exactly 735.49875 W, while hp (mechanical / imperial horsepower) equals exactly 745.6998715823 W (about 745.7 W). They differ by about 1.4 % — 1 hp ≈ 1.01387 PS. German and European vehicle specs are quoted in PS, whereas hp is used mainly in the US and UK.

Power conversions are exact and rest on fixed factors — for more unit pairs, use our power conversion hub.

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Frequently asked questions

How many kW are in 1 hp?

1 hp equals 0.746 kW.

How many kW are in 2 hp?

2 hp equal 1.49 kW.

How do I convert hp to kW?

Divide the power in hp by 1.34 to get kW.

What is mechanical horsepower (hp)?

Mechanical horsepower (hp) is imperial horsepower, equal to exactly 745.6998715823 W (about 745.7 W). It is used mainly in the US and UK — not to be confused with metric horsepower (PS), which equals 735.49875 W and is used for vehicles in Germany.

What are these power units used for?

Watts (W), kilowatts (kW), and megawatts (MW) are the SI units of power, used for electricity and engines. PS (metric horsepower) is used for German and European vehicles, mechanical hp in English-speaking countries, and BTU per hour (BTU/h) for heating and air-conditioning.

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