Convert Mechanical Horsepower to Electric Horsepower

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

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1 hp(I) = 0.999598 hp(E)

How to Convert Mechanical Horsepower to Electric Horsepower

To convert a mechanical horsepower measurement to a electric horsepower measurement, multiply the power by the conversion ratio. One mechanical horsepower is equal to 0.999598 electric horsepower, so use this simple formula to convert:

electric horsepower = mechanical horsepower × 0.999598

The power in electric horsepower is equal to the mechanical horsepower multiplied by 0.999598.

For example, here's how to convert 5 mechanical horsepower to electric horsepower using the formula above.
5 hp(I) = (5 × 0.999598) = 4.997988 hp(E)

Mechanical horsepower and electric horsepower 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.

Electric Horsepower

Electric horsepower is used to measure the output of electric motors and other electrical machines in the US. One electric horsepower is equal to exactly 746 watts.

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

Mechanical Horsepower Measurements and Equivalent Electric Horsepower Conversions

Common mechanical horsepower values converted to the equivalent electric horsepower value
Mechanical Horsepower Electric Horsepower
1 hp(I) 0.999598 hp(E)
2 hp(I) 1.9992 hp(E)
3 hp(I) 2.9988 hp(E)
4 hp(I) 3.9984 hp(E)
5 hp(I) 4.998 hp(E)
6 hp(I) 5.9976 hp(E)
7 hp(I) 6.9972 hp(E)
8 hp(I) 7.9968 hp(E)
9 hp(I) 8.9964 hp(E)
10 hp(I) 9.996 hp(E)
11 hp(I) 11 hp(E)
12 hp(I) 12 hp(E)
13 hp(I) 12.99 hp(E)
14 hp(I) 13.99 hp(E)
15 hp(I) 14.99 hp(E)
16 hp(I) 15.99 hp(E)
17 hp(I) 16.99 hp(E)
18 hp(I) 17.99 hp(E)
19 hp(I) 18.99 hp(E)
20 hp(I) 19.99 hp(E)
21 hp(I) 20.99 hp(E)
22 hp(I) 21.99 hp(E)
23 hp(I) 22.99 hp(E)
24 hp(I) 23.99 hp(E)
25 hp(I) 24.99 hp(E)
26 hp(I) 25.99 hp(E)
27 hp(I) 26.99 hp(E)
28 hp(I) 27.99 hp(E)
29 hp(I) 28.99 hp(E)
30 hp(I) 29.99 hp(E)
31 hp(I) 30.99 hp(E)
32 hp(I) 31.99 hp(E)
33 hp(I) 32.99 hp(E)
34 hp(I) 33.99 hp(E)
35 hp(I) 34.99 hp(E)
36 hp(I) 35.99 hp(E)
37 hp(I) 36.99 hp(E)
38 hp(I) 37.98 hp(E)
39 hp(I) 38.98 hp(E)
40 hp(I) 39.98 hp(E)

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 Kilowatts
1 hp(I) is equal to 0.7457 kilowatts
Convert to Megawatts
1 hp(I) is equal to 0.000746 megawatts
US Customary & Imperial Units
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