Months Between Dates Calculator

Enter a start and end date to see the months between them.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

Counting the months between two calendar dates is trickier than it looks because months have different lengths. This calculator finds the number of whole calendar months that fit between a start and end date, then reports the leftover days that don't make up a full month, and also expresses the gap as a single decimal number of months for cases where a fractional value is more useful.

This kind of date-span calculation comes up constantly in everyday life: figuring out a baby's or pet's age in months, calculating how long a tenancy, loan, subscription or employment contract has run, prorating rent or interest for a partial month, or working out how many months remain until a deadline or renewal date.

Enter any start and end date and the calculator returns the whole months, remaining days, and decimal-month equivalent between them.

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