Convert Electric Horsepower to Microwatts

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

Results in Microwatts:
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1 hp(E) = 746,000,000 µW

How to Convert Electric Horsepower to Microwatts

To convert a electric horsepower measurement to a microwatt measurement, multiply the power by the conversion ratio. One electric horsepower is equal to 746,000,000 microwatts, so use this simple formula to convert:

microwatts = electric horsepower × 746,000,000

The power in microwatts is equal to the electric horsepower multiplied by 746,000,000.

For example, here's how to convert 5 electric horsepower to microwatts using the formula above.
5 hp(E) = (5 × 746,000,000) = 3,730,000,000 µW

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

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).

Check out our HP to amps calculator to convert power to current.


One microwatt is the power equal to 1/1,000,000 of a watt, or the energy consumption at a rate of 1/1,000,000 of a joule per second.

The microwatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "micro" is the prefix for 10-6. Microwatts can be abbreviated as µW, for example 1 microwatt can be written as 1 µW.

Electric Horsepower Measurements and Equivalent Microwatt Conversions

Common electric horsepower values converted to the equivalent microwatt value
Electric Horsepower Microwatts
1 hp(E) 746,000,000 µW
2 hp(E) 1,492,000,000 µW
3 hp(E) 2,238,000,000 µW
4 hp(E) 2,984,000,000 µW
5 hp(E) 3,730,000,000 µW
6 hp(E) 4,476,000,000 µW
7 hp(E) 5,222,000,000 µW
8 hp(E) 5,968,000,000 µW
9 hp(E) 6,714,000,000 µW
10 hp(E) 7,460,000,000 µW
11 hp(E) 8,206,000,000 µW
12 hp(E) 8,952,000,000 µW
13 hp(E) 9,698,000,000 µW
14 hp(E) 10,444,000,000 µW
15 hp(E) 11,190,000,000 µW
16 hp(E) 11,936,000,000 µW
17 hp(E) 12,682,000,000 µW
18 hp(E) 13,428,000,000 µW
19 hp(E) 14,174,000,000 µW
20 hp(E) 14,920,000,000 µW
21 hp(E) 15,666,000,000 µW
22 hp(E) 16,412,000,000 µW
23 hp(E) 17,158,000,000 µW
24 hp(E) 17,904,000,000 µW
25 hp(E) 18,650,000,000 µW
26 hp(E) 19,396,000,000 µW
27 hp(E) 20,142,000,000 µW
28 hp(E) 20,888,000,000 µW
29 hp(E) 21,634,000,000 µW
30 hp(E) 22,380,000,000 µW
31 hp(E) 23,126,000,000 µW
32 hp(E) 23,872,000,000 µW
33 hp(E) 24,618,000,000 µW
34 hp(E) 25,364,000,000 µW
35 hp(E) 26,110,000,000 µW
36 hp(E) 26,856,000,000 µW
37 hp(E) 27,602,000,000 µW
38 hp(E) 28,348,000,000 µW
39 hp(E) 29,094,000,000 µW
40 hp(E) 29,840,000,000 µW

More Electric Horsepower Power Conversions

SI Units
Convert to Watts
1 hp(E) is equal to 746 watts
Convert to Milliwatts
1 hp(E) is equal to 746,000 milliwatts
Convert to Kilowatts
1 hp(E) is equal to 0.746 kilowatts
Convert to Megawatts
1 hp(E) is equal to 0.000746 megawatts
US Customary & Imperial Units
Convert to Mechanical Horsepower
1 hp(E) is equal to 1.000402 mechanical horsepower
Convert to Btu Per Hour
1 hp(E) is equal to 2,545.46 btu per hour
Other Units
Convert to Kilocalories Per Hour
1 hp(E) is equal to 641.873928 kilocalories per hour

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.