Months To Years Conversion (mo To Yr) - Inch Calculator

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• Months to Years Converter
• How to Convert Months to Years
• Common Durations
• What Is a Month?
• What Is a Year?
• Month to Year Conversion Table

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Sexton, J. (n.d.). Months to Years Converter. Inch Calculator. Retrieved December 14, 2025, from https://www.inchcalculator.com/convert/month-to-year/

How to Convert Months to Years

To convert a measurement in months to a measurement in years, divide the time by the following conversion ratio: 12 months/year.

Since one year is equal to 12 months, you can use this simple formula to convert:

years = months ÷ 12

The time in years is equal to the time in months divided by 12.

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

years = (5 mo ÷ 12) = 0.416667 yr

Calendar IconCommon Durations

• How many years is 36 months?Chevron Right Icon
• How many years is 48 months?Chevron Right Icon
• How many years is 60 months?Chevron Right Icon
• How many years is 72 months?Chevron Right Icon
• How many years is 84 months?Chevron Right Icon

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

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.

Learn more about months.

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.

Month to Year Conversion Table

Table showing various month measurements converted to years.

Months	Years
1 mo	0.083333 yr
2 mo	0.166667 yr
3 mo	0.25 yr
4 mo	0.333333 yr
5 mo	0.416667 yr
6 mo	0.5 yr
7 mo	0.583333 yr
8 mo	0.666667 yr
9 mo	0.75 yr
10 mo	0.833333 yr
11 mo	0.916667 yr
12 mo	1 yr
13 mo	1.0833 yr
14 mo	1.1667 yr
15 mo	1.25 yr
16 mo	1.3333 yr
17 mo	1.4167 yr
18 mo	1.5 yr
19 mo	1.5833 yr
20 mo	1.6667 yr
21 mo	1.75 yr
22 mo	1.8333 yr
23 mo	1.9167 yr
24 mo	2 yr
25 mo	2.0833 yr
26 mo	2.1667 yr
27 mo	2.25 yr
28 mo	2.3333 yr
29 mo	2.4167 yr
30 mo	2.5 yr
31 mo	2.5833 yr
32 mo	2.6667 yr
33 mo	2.75 yr
34 mo	2.8333 yr
35 mo	2.9167 yr
36 mo	3 yr
37 mo	3.0833 yr
38 mo	3.1667 yr
39 mo	3.25 yr
40 mo	3.3333 yr

More Month & Year Conversions

Calendar IconConvert from Months

• months to centuriesChevron Right Icon
• months to decadesChevron Right Icon
• months to weeksChevron Right Icon
• months to daysChevron Right Icon
• months to hoursChevron Right Icon
• months to minutesChevron Right Icon
• months to secondsChevron Right Icon
• months to millisecondsChevron Right Icon
• months to microsecondsChevron Right Icon
• months to nanosecondsChevron Right Icon

Calendar IconConvert to Years

• centuries to yearsChevron Right Icon
• decades to yearsChevron Right Icon
• weeks to yearsChevron Right Icon
• days to yearsChevron Right Icon
• hours to yearsChevron Right Icon
• minutes to yearsChevron Right Icon
• seconds to yearsChevron Right Icon
• milliseconds to yearsChevron Right Icon
• microseconds to yearsChevron Right Icon
• nanoseconds to yearsChevron Right Icon