Convert Mechanical Horsepower to Kilowatts

Enter the power in mechanical horsepower below to get the value converted to kilowatts.

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Results in Kilowatts:
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1 hp(I) = 0.7457 kW

How to Convert Mechanical Horsepower to Kilowatts

To convert a mechanical horsepower measurement to a kilowatt measurement, multiply the power by the conversion ratio. One mechanical horsepower is equal to 0.7457 kilowatts, so use this simple formula to convert:

kilowatts = mechanical horsepower × 0.7457

The power in kilowatts is equal to the mechanical horsepower multiplied by 0.7457.

For example, here's how to convert 5 mechanical horsepower to kilowatts using the formula above.
5 hp(I) = (5 × 0.7457) = 3.728499 kW

Mechanical horsepower and kilowatts are both units used to measure power. Keep reading to learn more about each unit of measure.

Mechanical Horsepower

Mechanical horsepower is often used to measure the output of engines and motors in North America. One mechanical horsepower is equal to 745.69987158227022 watts.

The mechanical horsepower is a US customary and imperial unit of power. Mechanical horsepower can be abbreviated as hp(I), for example 1 mechanical horsepower can be written as 1 hp(I).

Try our engine horsepower calculator to calculate the power of a motor.

Kilowatts

One kilowatt is the power equal to 1,000 watts, or the energy consumption at a rate of 1,000 joules per second.

The kilowatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "kilo" is the prefix for 103. Kilowatts can be abbreviated as kW, for example 1 kilowatt can be written as 1 kW.

Mechanical Horsepower Measurements and Equivalent Kilowatt Conversions

Common mechanical horsepower values converted to the equivalent kilowatt value
Mechanical Horsepower Kilowatts
1 hp(I) 0.7457 kW
2 hp(I) 1.4914 kW
3 hp(I) 2.2371 kW
4 hp(I) 2.9828 kW
5 hp(I) 3.7285 kW
6 hp(I) 4.4742 kW
7 hp(I) 5.2199 kW
8 hp(I) 5.9656 kW
9 hp(I) 6.7113 kW
10 hp(I) 7.457 kW
11 hp(I) 8.2027 kW
12 hp(I) 8.9484 kW
13 hp(I) 9.6941 kW
14 hp(I) 10.44 kW
15 hp(I) 11.19 kW
16 hp(I) 11.93 kW
17 hp(I) 12.68 kW
18 hp(I) 13.42 kW
19 hp(I) 14.17 kW
20 hp(I) 14.91 kW
21 hp(I) 15.66 kW
22 hp(I) 16.41 kW
23 hp(I) 17.15 kW
24 hp(I) 17.9 kW
25 hp(I) 18.64 kW
26 hp(I) 19.39 kW
27 hp(I) 20.13 kW
28 hp(I) 20.88 kW
29 hp(I) 21.63 kW
30 hp(I) 22.37 kW
31 hp(I) 23.12 kW
32 hp(I) 23.86 kW
33 hp(I) 24.61 kW
34 hp(I) 25.35 kW
35 hp(I) 26.1 kW
36 hp(I) 26.85 kW
37 hp(I) 27.59 kW
38 hp(I) 28.34 kW
39 hp(I) 29.08 kW
40 hp(I) 29.83 kW

More Mechanical Horsepower Power Conversions

SI Units
Convert to Watts
1 hp(I) is equal to 745.699872 watts
Convert to Microwatts
1 hp(I) is equal to 745,699,871.6 microwatts
Convert to Milliwatts
1 hp(I) is equal to 745,699.9 milliwatts
Convert to Megawatts
1 hp(I) is equal to 0.000746 megawatts
US Customary & Imperial Units
Convert to Electric Horsepower
1 hp(I) is equal to 0.999598 electric horsepower
Convert to Btu Per Hour
1 hp(I) is equal to 2,544.43 btu per hour
Other Units
Convert to Kilocalories Per Hour
1 hp(I) is equal to 641.615691 kilocalories per hour