# Convert Watts to Mechanical Horsepower

Enter your watt value in the form below to get the value calculated in mechanical horsepower.

**Results in Mechanical Horsepower:**

## How to Convert Watts to Mechanical Horsepower

Convert watts to mechanical horsepower with this simple formula:

Converting a watt power measurement to a mechanical horsepower measurement involves multiplying the power by the conversion ratio to find the result. One watt is equal to 0.001341 mechanical horsepower, so to convert simply multiply by 0.001341.

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

Watts and mechanical horsepower are both units used to measure power.
Learn more about power and
find more power measurement conversion calculators.
Watts are a power measurement and can be abbreviated as *W*, for example 1 W.
Mechanical horsepower is a power measurement and can be abbreviated as *hp(I)*, for example 1 hp(I).

A watt is equal to the rate of energy of one joule per second and is a standard unit of power measurement under the International System of Units (SI). You might also find our watts to amps calculator or our watts to kilowatt-hours calculator useful.

Mechanical horsepower is often used to measure the output of engines and motors in North America and is equal to 745.69987158227022 watts, or joules per second. Electric horsepower is used to measure the output of electric motors and other electrical machines, and is equal to exactly 746 watts.

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

## Watt Measurements and Equivalent Mechanical Horsepower Conversions

Watts | Mechanical Horsepower |
---|---|

1 W | 0.001341 hp(I) |

2 W | 0.002682 hp(I) |

3 W | 0.004023 hp(I) |

4 W | 0.005364 hp(I) |

5 W | 0.006705 hp(I) |

6 W | 0.008046 hp(I) |

7 W | 0.009387 hp(I) |

8 W | 0.010728 hp(I) |

9 W | 0.012069 hp(I) |

10 W | 0.01341 hp(I) |

11 W | 0.014751 hp(I) |

12 W | 0.016092 hp(I) |

13 W | 0.017433 hp(I) |

14 W | 0.018774 hp(I) |

15 W | 0.020115 hp(I) |

16 W | 0.021456 hp(I) |

17 W | 0.022797 hp(I) |

18 W | 0.024138 hp(I) |

19 W | 0.025479 hp(I) |

20 W | 0.02682 hp(I) |

21 W | 0.028161 hp(I) |

22 W | 0.029502 hp(I) |

23 W | 0.030844 hp(I) |

24 W | 0.032185 hp(I) |

25 W | 0.033526 hp(I) |

26 W | 0.034867 hp(I) |

27 W | 0.036208 hp(I) |

28 W | 0.037549 hp(I) |

29 W | 0.03889 hp(I) |

30 W | 0.040231 hp(I) |

31 W | 0.041572 hp(I) |

32 W | 0.042913 hp(I) |

33 W | 0.044254 hp(I) |

34 W | 0.045595 hp(I) |

35 W | 0.046936 hp(I) |

36 W | 0.048277 hp(I) |

37 W | 0.049618 hp(I) |

38 W | 0.050959 hp(I) |

39 W | 0.0523 hp(I) |

40 W | 0.053641 hp(I) |

## More Watt Power Conversions

- Convert to Microwatts
- 1 W is equal to 1,000,000 microwatts
- Convert to Milliwatts
- 1 W is equal to 1,000 milliwatts
- Convert to Kilowatts
- 1 W is equal to 0.001 kilowatts
- Convert to Megawatts
- 1 W is equal to 1.0E-6 megawatts
- Convert to Electric Horsepower
- 1 W is equal to 0.00134 electric horsepower
- Convert to Btu Per Hour
- 1 W is equal to 3.412142 btu per hour
- Convert to Kilocalories Per Hour
- 1 W is equal to 0.860421 kilocalories per hour