# Convert Milliwatts to Btu Per Hour

Enter the power in milliwatts below to get the value converted to btu per hour.

**Results in Btu Per Hour:**

## How to Convert Milliwatts to Btu Per Hour

To convert a milliwatt measurement to a btu per hour measurement, multiply the power by the conversion ratio. One milliwatt is equal to 0.003412 btu per hour, so use this simple formula to convert:

The power in btu per hour is equal to the milliwatts multiplied by 0.003412.

**For example,**here's how to convert 5 milliwatts to btu per hour using the formula above.

Milliwatts and btu per hour are both units used to measure power. Keep reading to learn more about each unit of measure.

## 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.

## Btu Per Hour

One BTU per hour is equal to one british thermal unit, or the energy needed to heat one pound of water 1 °F, for one hour.

The btu per hour is a US customary unit of power. Btu per hour can be abbreviated as *Btu/h*, for example 1 btu per hour can be written as 1 Btu/h.

## Milliwatt Measurements and Equivalent Btu Per Hour Conversions

Milliwatts | Btu Per Hour |
---|---|

1 mW | 0.003412 Btu/h |

2 mW | 0.006824 Btu/h |

3 mW | 0.010236 Btu/h |

4 mW | 0.013649 Btu/h |

5 mW | 0.017061 Btu/h |

6 mW | 0.020473 Btu/h |

7 mW | 0.023885 Btu/h |

8 mW | 0.027297 Btu/h |

9 mW | 0.030709 Btu/h |

10 mW | 0.034121 Btu/h |

11 mW | 0.037534 Btu/h |

12 mW | 0.040946 Btu/h |

13 mW | 0.044358 Btu/h |

14 mW | 0.04777 Btu/h |

15 mW | 0.051182 Btu/h |

16 mW | 0.054594 Btu/h |

17 mW | 0.058006 Btu/h |

18 mW | 0.061419 Btu/h |

19 mW | 0.064831 Btu/h |

20 mW | 0.068243 Btu/h |

21 mW | 0.071655 Btu/h |

22 mW | 0.075067 Btu/h |

23 mW | 0.078479 Btu/h |

24 mW | 0.081891 Btu/h |

25 mW | 0.085304 Btu/h |

26 mW | 0.088716 Btu/h |

27 mW | 0.092128 Btu/h |

28 mW | 0.09554 Btu/h |

29 mW | 0.098952 Btu/h |

30 mW | 0.102364 Btu/h |

31 mW | 0.105776 Btu/h |

32 mW | 0.109189 Btu/h |

33 mW | 0.112601 Btu/h |

34 mW | 0.116013 Btu/h |

35 mW | 0.119425 Btu/h |

36 mW | 0.122837 Btu/h |

37 mW | 0.126249 Btu/h |

38 mW | 0.129661 Btu/h |

39 mW | 0.133074 Btu/h |

40 mW | 0.136486 Btu/h |

## More Milliwatt Power Conversions

**SI Units**

- Convert to Watts
- 1 mW is equal to 0.001 watts
- Convert to Microwatts
- 1 mW is equal to 1,000 microwatts
- Convert to Kilowatts
- 1 mW is equal to 1.0E-6 kilowatts
- Convert to Megawatts
- 1 mW is equal to 1.0E-9 megawatts

**US Customary & Imperial Units**

- Convert to Mechanical Horsepower
- 1 mW is equal to 1.341E-6 mechanical horsepower
- Convert to Electric Horsepower
- 1 mW is equal to 1.3405E-6 electric horsepower

**Other Units**

- Convert to Kilocalories Per Hour
- 1 mW is equal to 0.00086 kilocalories per hour