# Hours to Seconds Converter

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

**Results in Seconds:**

Do you want to convert seconds to hours?

## How to Convert Hours to Seconds

To convert a measurement in hours to a measurement in seconds, multiply the time by the following conversion ratio: 3,600 seconds/hour.

Since one hour is equal to 3,600 seconds, you can use this simple formula to convert:

seconds = hours × 3,600

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

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

### How Many Seconds Are in an Hour?

There are **3,600** seconds in an hour, which is why we use this value in the formula above.

1 hr = 3,600 s

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

## What Is an Hour?

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* (plural *hrs*); for example, 1 hour can be written as 1 hr, and 2 hours can be written as 2 hrs.

Learn more about hours.

## What Is a Second?

The second has historically been defined as 1/60 of a minute or 1/86,400 of a day.
According to the SI definition, the second is the duration of 9,192,631,770 oscillations of the frequency of light emitted from the atomic transition between the two hyperfine levels of the unperturbed ground state of the caesium 133 atom.^{[1]}

The second is the SI base unit for time in the metric system. Seconds can be abbreviated as *s*, and are also sometimes abbreviated as *sec*. For example, 1 second can be written as 1 s or 1 sec.

Learn more about seconds.

## Hour to Second Conversion Table

Hours | Seconds |
---|---|

0.001 hr | 3.6 s |

0.002 hr | 7.2 s |

0.003 hr | 10.8 s |

0.004 hr | 14.4 s |

0.005 hr | 18 s |

0.006 hr | 21.6 s |

0.007 hr | 25.2 s |

0.008 hr | 28.8 s |

0.009 hr | 32.4 s |

0.01 hr | 36 s |

0.02 hr | 72 s |

0.03 hr | 108 s |

0.04 hr | 144 s |

0.05 hr | 180 s |

0.06 hr | 216 s |

0.07 hr | 252 s |

0.08 hr | 288 s |

0.09 hr | 324 s |

0.1 hr | 360 s |

0.2 hr | 720 s |

0.3 hr | 1,080 s |

0.4 hr | 1,440 s |

0.5 hr | 1,800 s |

0.6 hr | 2,160 s |

0.7 hr | 2,520 s |

0.8 hr | 2,880 s |

0.9 hr | 3,240 s |

1 hr | 3,600 s |

## References

- International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

## More Hour & Second Conversions

- hours to centuries
- hours to decades
- hours to years
- hours to months
- hours to weeks
- hours to days
- hours to minutes
- hours to milliseconds
- hours to microseconds
- hours to nanoseconds
- centuries to seconds
- decades to seconds
- years to seconds
- months to seconds
- weeks to seconds
- days to seconds
- minutes to seconds
- milliseconds to seconds
- microseconds to seconds
- nanoseconds to seconds