Months to Years Calculator

Created by Mariamy Chrdileli
Reviewed by Davide Borchia
Last updated: Jun 29, 2023

Welcome to the Omni months to years calculator, a simple tool that can help convert months to years.

Whether you're trying to figure out how old your coworker's 18-month-old baby actually is or how many years your 14-month course will take, this tool is for you. Come along if you want to know clear answers to the following questions:

  • How do I convert months to years?
  • When did 12 months become a year?
  • How does months to years calculator work?
  • How many years are in 120 months? And more! 📆

How do I convert months to years?

Let's start from the beginning – how many months are in a year or vice versa?

1 year = 12 months
1 month ≈ 0.08333 years

  1. To convert months to years, you need to divide the value in months by 12;
    years = months / 12
  2. To convert years to months, you need to multiply the value in years by 12;
    months = years × 12

For example, if you were to calculate how many years are in 120 months, you would divide 120 by 12, meaning 120 months equals 10 years. On the other hand, if you wanted to calculate how many months are in 4 years, you would multiply four by 12, which equals 48 months.

How do I use months to years converter?

Using months to years calculator is relatively straightforward! All you have to do is enter the number of months you want to convert, and our tool will give you the answer in years and years:months notation.

You can also use the tool to convert years to months or other time units!

Did you find the months to years calculator helpful? Come along for other time conversion calculators:


When did 12 months become a year?

Before 700 BCE, ancient Romans considered ten months a year (304 days). Then, January and February were added to the calendar (355 days). Later, in 45 B.C., Julius Caesar introduced the 12 months in the calendar and the addition of a leap year, as we know it today.

How do I convert 60 months in years?

To convert 60 months into years, you can follow the next steps:

  1. Take the number in months, in this case, 60.
  2. Divide the value by 12.
  3. That's all! You have now calculated how many years are in 60 months, which is 5!

How many months are in 4 years?

There are 48 months in 4 years. Since there are 12 months in a year, if you want to convert years into months, you need to multiply the number of years by the conversion factor of 12. In other words, to convert 4 years into months, you need to multiply 4 by 12, which equals 48.

Mariamy Chrdileli
Years / months
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