Enter the time in months below to get the value converted to decades.

Do you want to convert decades to months?

How to Convert Months to Decades

To convert a measurement in months to a measurement in decades, divide the time by the following conversion ratio: 120 months/decade.

Since one decade is equal to 120 months, you can use this simple formula to convert:

The time in decades is equal to the time in months divided by 120.

For example, here's how to convert 500 months to decades using the formula above.

What Is a Month?

One month is a unit of time equal to 1/12 of a year. The month is a unit of time used most commonly in relation to the calendar, and ranges in length from 28 to 31 days.

Months can be abbreviated as mo (plural mos), and are also sometimes abbreviated as mth. For example, 1 month can be written as 1 mo or 1 mth, and 2 months can be written as 2 mos.

The decade is a time period of 10 years.

Table showing various month measurements converted to decades.
1 mo 0.008333
2 mo 0.016667
3 mo 0.025
4 mo 0.033333
5 mo 0.041667
6 mo 0.05
7 mo 0.058333
8 mo 0.066667
9 mo 0.075
10 mo 0.083333
20 mo 0.166667
30 mo 0.25
40 mo 0.333333
50 mo 0.416667
60 mo 0.5
70 mo 0.583333
80 mo 0.666667
90 mo 0.75
100 mo 0.833333
200 mo 1.6667
300 mo 2.5
400 mo 3.3333
500 mo 4.1667
600 mo 5
700 mo 5.8333
800 mo 6.6667
900 mo 7.5
1,000 mo 8.3333