# Convert Hours to Milliseconds

Enter the time in hours below to get the value converted to milliseconds.

**Results in Milliseconds:**

## How to Convert Hours to Milliseconds

To convert a hour measurement to a millisecond measurement, multiply the time by the conversion ratio. One hour is equal to 3,600,000 milliseconds, so use this simple formula to convert:

The time in milliseconds is equal to the hours multiplied by 3,600,000.

**For example,**here's how to convert 5 hours to milliseconds using the formula above.

Hours and milliseconds are both units used to measure time. Keep reading to learn more about each unit of measure.

## Hours

The hour is a period of time equal to 1/24 of a day or 60 minutes.

The hour is an SI accepted unit for time for use with the metric system. Hours can be abbreviated as *hr*, for example 1 hour can be written as 1 hr.

## Milliseconds

The millisecond is a multiple of the second, which is the SI base unit for time. In the metric system, "milli" is the prefix for 10^{-3}. Milliseconds can be abbreviated as *ms*, for example 1 millisecond can be written as 1 ms.

## Hour Measurements and Equivalent Millisecond Conversions

Hours | Milliseconds |
---|---|

1 hr | 3,600,000 ms |

2 hr | 7,200,000 ms |

3 hr | 10,800,000 ms |

4 hr | 14,400,000 ms |

5 hr | 18,000,000 ms |

6 hr | 21,600,000 ms |

7 hr | 25,200,000 ms |

8 hr | 28,800,000 ms |

9 hr | 32,400,000 ms |

10 hr | 36,000,000 ms |

11 hr | 39,600,000 ms |

12 hr | 43,200,000 ms |

13 hr | 46,800,000 ms |

14 hr | 50,400,000 ms |

15 hr | 54,000,000 ms |

16 hr | 57,600,000 ms |

17 hr | 61,200,000 ms |

18 hr | 64,800,000 ms |

19 hr | 68,400,000 ms |

20 hr | 72,000,000 ms |

21 hr | 75,600,000 ms |

22 hr | 79,200,000 ms |

23 hr | 82,800,000 ms |

24 hr | 86,400,000 ms |

25 hr | 90,000,000 ms |

26 hr | 93,600,000 ms |

27 hr | 97,200,000 ms |

28 hr | 100,800,000 ms |

29 hr | 104,400,000 ms |

30 hr | 108,000,000 ms |

31 hr | 111,600,000 ms |

32 hr | 115,200,000 ms |

33 hr | 118,800,000 ms |

34 hr | 122,400,000 ms |

35 hr | 126,000,000 ms |

36 hr | 129,600,000 ms |

37 hr | 133,200,000 ms |

38 hr | 136,800,000 ms |

39 hr | 140,400,000 ms |

40 hr | 144,000,000 ms |

## More Hour Time Conversions

- Convert to Centuries
- 1 hr is equal to 1.1408E-6 centuries
- Convert to Decades
- 1 hr is equal to 1.1408E-5 decades
- Convert to Years
- 1 hr is equal to 0.000114 years
- Convert to Months
- 1 hr is equal to 0.001369 months
- Convert to Weeks
- 1 hr is equal to 0.005952 weeks
- Convert to Days
- 1 hr is equal to 0.041667 days
- Convert to Minutes
- 1 hr is equal to 60 minutes
- Convert to Seconds
- 1 hr is equal to 3,600 seconds
- Convert to Microseconds
- 1 hr is equal to 3,600,000,000 microseconds
- Convert to Nanoseconds
- 1 hr is equal to 3,600,000,000,000 nanoseconds