# Convert Days to Years

Enter the time in days below to get the value converted to years.

**Results in Years:**

## How to Convert Days to Years

To convert a day measurement to a year measurement, multiply the time by the conversion ratio. One day is equal to 0.002738 years, so use this simple formula to convert:

The time in years is equal to the days multiplied by 0.002738.

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

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

## Days

One day is the time it takes for the Earth to complete a single rotation around its axis in relation to the Sun. There are 24 hours in a day.

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

## Years

One year is the time it takes for the Earth to complete its orbit around the Sun. There are 365 days in a year, with the exception of the leap year when there are 366.

Years can be abbreviated as *yr*, and are also sometimes abbreviated as *y*. For example, 1 year can be written as 1 yr or 1 y.

## Day Measurements and Equivalent Year Conversions

Days | Years |
---|---|

1 day | 0.002738 yr |

2 day | 0.005476 yr |

3 day | 0.008214 yr |

4 day | 0.010952 yr |

5 day | 0.01369 yr |

6 day | 0.016427 yr |

7 day | 0.019165 yr |

8 day | 0.021903 yr |

9 day | 0.024641 yr |

10 day | 0.027379 yr |

11 day | 0.030117 yr |

12 day | 0.032855 yr |

13 day | 0.035593 yr |

14 day | 0.038331 yr |

15 day | 0.041069 yr |

16 day | 0.043807 yr |

17 day | 0.046544 yr |

18 day | 0.049282 yr |

19 day | 0.05202 yr |

20 day | 0.054758 yr |

21 day | 0.057496 yr |

22 day | 0.060234 yr |

23 day | 0.062972 yr |

24 day | 0.06571 yr |

25 day | 0.068448 yr |

26 day | 0.071186 yr |

27 day | 0.073923 yr |

28 day | 0.076661 yr |

29 day | 0.079399 yr |

30 day | 0.082137 yr |

31 day | 0.084875 yr |

32 day | 0.087613 yr |

33 day | 0.090351 yr |

34 day | 0.093089 yr |

35 day | 0.095827 yr |

36 day | 0.098565 yr |

37 day | 0.101303 yr |

38 day | 0.10404 yr |

39 day | 0.106778 yr |

40 day | 0.109516 yr |

## More Day Time Conversions

- Convert to Centuries
- 1 day is equal to 2.7379E-5 centuries
- Convert to Decades
- 1 day is equal to 0.000274 decades
- Convert to Months
- 1 day is equal to 0.032855 months
- Convert to Weeks
- 1 day is equal to 0.142857 weeks
- Convert to Hours
- 1 day is equal to 24 hours
- Convert to Minutes
- 1 day is equal to 1,440 minutes
- Convert to Seconds
- 1 day is equal to 86,400 seconds
- Convert to Milliseconds
- 1 day is equal to 86,400,000 milliseconds
- Convert to Microseconds
- 1 day is equal to 86,400,000,000 microseconds
- Convert to Nanoseconds
- 1 day is equal to 86,400,000,000,000 nanoseconds

## Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

## Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

### Here is a list of some of the common metric prefixes:

- “kilo” – 1,000x larger
- “hecto” – 100x larger
- “deca” – 10x larger
- “deci” – 10x smaller
- “centi” – 100x smaller
- “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”

The u in Until refers to the base unit.