Convert Years to Decades
Enter the time in years below to get the value converted to decades.
How to Convert Years to Decades
To convert a year measurement to a decade measurement, divide the time by the conversion ratio. One decade is equal to 10 years, so use this simple formula to convert:
The time in decades is equal to the years divided by 10.
Years and decades are both units used to measure time. Keep reading to learn more about each unit of measure.
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.
Decades
The decade is a time period of 10 years.
Year to Decade Conversion Table
| Years | Decades |
|---|---|
| 1 yr | 0.1 |
| 2 yr | 0.2 |
| 3 yr | 0.3 |
| 4 yr | 0.4 |
| 5 yr | 0.5 |
| 6 yr | 0.6 |
| 7 yr | 0.7 |
| 8 yr | 0.8 |
| 9 yr | 0.9 |
| 10 yr | 1 |
| 11 yr | 1.1 |
| 12 yr | 1.2 |
| 13 yr | 1.3 |
| 14 yr | 1.4 |
| 15 yr | 1.5 |
| 16 yr | 1.6 |
| 17 yr | 1.7 |
| 18 yr | 1.8 |
| 19 yr | 1.9 |
| 20 yr | 2 |
| 21 yr | 2.1 |
| 22 yr | 2.2 |
| 23 yr | 2.3 |
| 24 yr | 2.4 |
| 25 yr | 2.5 |
| 26 yr | 2.6 |
| 27 yr | 2.7 |
| 28 yr | 2.8 |
| 29 yr | 2.9 |
| 30 yr | 3 |
| 31 yr | 3.1 |
| 32 yr | 3.2 |
| 33 yr | 3.3 |
| 34 yr | 3.4 |
| 35 yr | 3.5 |
| 36 yr | 3.6 |
| 37 yr | 3.7 |
| 38 yr | 3.8 |
| 39 yr | 3.9 |
| 40 yr | 4 |
