Decades to Years Converter
Enter the time in decades below to convert it to years.
Result in Years:
Do you want to convert years to decades?
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How to Convert Decades to Years
To convert a measurement in decades to a measurement in years, multiply the time by the following conversion ratio: 10 years/decade.
Since one decade is equal to 10 years, you can use this simple formula to convert:
years = decades × 10
The time in years is equal to the time in decades multiplied by 10.
For example, here's how to convert 5 decades to years using the formula above.
years = (5 decades × 10) = 50 yr
How Many Years Are in a Decade?
There are 10 years in a decade, which is why we use this value in the formula above.
1 decades = 10 yr
Decades and years are both units used to measure time. Keep reading to learn more about each unit of measure.
What Is a Year?
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.
We have leap years because the Earth actually takes 365.2425 days to revolve around the sun, but we round to 365 for convenience. However, since we miss a quarter of a day per revolution around the sun, this means that we add an extra day to the year once every 4 years, hence the leap year.
Years can be abbreviated as yr (plural yrs), and are also sometimes abbreviated as y. For example, 1 year can be written as 1 yr or 1 y, and 2 years can be written as 2 yrs.
Learn more about years.
Decade to Year Conversion Table
| Decades | Years |
|---|---|
| 1 | 10 yr |
| 2 | 20 yr |
| 3 | 30 yr |
| 4 | 40 yr |
| 5 | 50 yr |
| 6 | 60 yr |
| 7 | 70 yr |
| 8 | 80 yr |
| 9 | 90 yr |
| 10 | 100 yr |
| 11 | 110 yr |
| 12 | 120 yr |
| 13 | 130 yr |
| 14 | 140 yr |
| 15 | 150 yr |
| 16 | 160 yr |
| 17 | 170 yr |
| 18 | 180 yr |
| 19 | 190 yr |
| 20 | 200 yr |
| 21 | 210 yr |
| 22 | 220 yr |
| 23 | 230 yr |
| 24 | 240 yr |
| 25 | 250 yr |
| 26 | 260 yr |
| 27 | 270 yr |
| 28 | 280 yr |
| 29 | 290 yr |
| 30 | 300 yr |
| 31 | 310 yr |
| 32 | 320 yr |
| 33 | 330 yr |
| 34 | 340 yr |
| 35 | 350 yr |
| 36 | 360 yr |
| 37 | 370 yr |
| 38 | 380 yr |
| 39 | 390 yr |
| 40 | 400 yr |