Months to Years Converter
Convert months to years instantly. One month equals about 0.08333333 years. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert months to years
Worked example: convert 7 months to years. Using years ← months ÷ 12, we get 7 × 0.08333333333 = 0.58333333 yr. To check the result, convert back: 0.58333333 yr ÷ 0.08333333333 = 7 mo.
Months to years chart
| Months (mo) | Years (yr) |
|---|---|
| 1 mo | 0.08333333 yr |
| 2 mo | 0.1666667 yr |
| 3 mo | 0.25 yr |
| 4 mo | 0.3333333 yr |
| 5 mo | 0.4166667 yr |
| 6 mo | 0.5 yr |
| 8 mo | 0.6666667 yr |
| 10 mo | 0.8333333 yr |
| 12 mo | 1 yr |
| 15 mo | 1.25 yr |
| 20 mo | 1.666667 yr |
| 25 mo | 2.083333 yr |
| 30 mo | 2.5 yr |
| 40 mo | 3.333333 yr |
| 50 mo | 4.166667 yr |
| 75 mo | 6.25 yr |
| 100 mo | 8.333333 yr |
| 150 mo | 12.5 yr |
| 200 mo | 16.66667 yr |
| 250 mo | 20.83333 yr |
| 500 mo | 41.66667 yr |
| 1,000 mo | 83.33333 yr |
Years to months (reverse)
| Years (yr) | Months (mo) |
|---|---|
| 1 yr | 12 mo |
| 2 yr | 24 mo |
| 5 yr | 60 mo |
| 10 yr | 120 mo |
| 20 yr | 240 mo |
| 50 yr | 600 mo |
| 100 yr | 1,200 mo |
| 250 yr | 3,000 mo |
| 500 yr | 6,000 mo |
| 1,000 yr | 12,000 mo |
About the month and the year
A month in this converter is the average Gregorian month of 30.436875 days (365.2425 days divided by 12). Real months have 28 to 31 days, so a conversion to days is an average rather than a calendar count.
A year here is the average Gregorian year of 365.2425 days, which includes leap years. A common year has 365 days and a leap year has 366.
One year equals 12 months, which makes the year the longer unit of the two.
Everyday sizes in months and years
| Everyday example (approximate) | In months | In years |
|---|---|---|
| A feature film | 0.0027379 mo | 0.00022816 yr |
| A working day | 0.010952 mo | 0.00091264 yr |
| A long-haul flight | 0.01369 mo | 0.0011408 yr |
| A work week | 0.054758 mo | 0.0045632 yr |
| A school year of 180 days | 5.9139 mo | 0.49282 yr |
| A human lifespan of 80 years | 960 mo | 80 yr |
Months to years FAQ
How many years are in one month?
One month equals approximately 0.08333333333 years. In the other direction, one year equals 12 months.
How do I convert months to years without a calculator?
convert 7 months to years. Using years ← months ÷ 12, we get 7 × 0.08333333333 = 0.58333333 yr. To check the result, convert back: 0.58333333 yr ÷ 0.08333333333 = 7 mo. For a quick estimate, round the factor to 0.083. Then 7 mo is about 0.581 yr, compared with the exact 0.583333 yr (an error of 0.4%). That is close enough for planning, but use the calculator above when the number matters.
What is a human lifespan of 80 years in years?
A human lifespan of 80 years is about 960 months, which is 80 years. Treat that as an approximate everyday figure rather than an official measurement.
Are the months and years the same in every country?
Calendar months have 28 to 31 days; this converter uses the average of 30.436875 days (2,629,746 seconds). A common year has 365 days and a leap year 366; this converter uses the 365.2425-day Gregorian average (31,556,952 seconds).