# Convert Mechanical Horsepower to Milliwatts

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

**Results in Milliwatts:**

## How to Convert Mechanical Horsepower to Milliwatts

To convert a mechanical horsepower measurement to a milliwatt measurement, multiply the power by the conversion ratio. One mechanical horsepower is equal to 745,699.871582 milliwatts, so use this simple formula to convert:

The power in milliwatts is equal to the mechanical horsepower multiplied by 745,699.871582.

**For example,**here's how to convert 5 mechanical horsepower to milliwatts using the formula above.

Mechanical horsepower and milliwatts 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.

## Milliwatts

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

The milliwatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "milli" is the prefix for 10^{-3}. Milliwatts can be abbreviated as *mW*, for example 1 milliwatt can be written as 1 mW.

## Mechanical Horsepower Measurements and Equivalent Milliwatt Conversions

Mechanical Horsepower | Milliwatts |
---|---|

1 hp(I) | 745,700 mW |

2 hp(I) | 1,491,400 mW |

3 hp(I) | 2,237,100 mW |

4 hp(I) | 2,982,799 mW |

5 hp(I) | 3,728,499 mW |

6 hp(I) | 4,474,199 mW |

7 hp(I) | 5,219,899 mW |

8 hp(I) | 5,965,599 mW |

9 hp(I) | 6,711,299 mW |

10 hp(I) | 7,456,999 mW |

11 hp(I) | 8,202,699 mW |

12 hp(I) | 8,948,398 mW |

13 hp(I) | 9,694,098 mW |

14 hp(I) | 10,439,798 mW |

15 hp(I) | 11,185,498 mW |

16 hp(I) | 11,931,198 mW |

17 hp(I) | 12,676,898 mW |

18 hp(I) | 13,422,598 mW |

19 hp(I) | 14,168,298 mW |

20 hp(I) | 14,913,997 mW |

21 hp(I) | 15,659,697 mW |

22 hp(I) | 16,405,397 mW |

23 hp(I) | 17,151,097 mW |

24 hp(I) | 17,896,797 mW |

25 hp(I) | 18,642,497 mW |

26 hp(I) | 19,388,197 mW |

27 hp(I) | 20,133,897 mW |

28 hp(I) | 20,879,596 mW |

29 hp(I) | 21,625,296 mW |

30 hp(I) | 22,370,996 mW |

31 hp(I) | 23,116,696 mW |

32 hp(I) | 23,862,396 mW |

33 hp(I) | 24,608,096 mW |

34 hp(I) | 25,353,796 mW |

35 hp(I) | 26,099,496 mW |

36 hp(I) | 26,845,195 mW |

37 hp(I) | 27,590,895 mW |

38 hp(I) | 28,336,595 mW |

39 hp(I) | 29,082,295 mW |

40 hp(I) | 29,827,995 mW |

## 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 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 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