Months Between Dates Calculator
Find the number of full months and days between two dates, useful for calculating contract terms, tenancy lengths or age in months.
Your results
Calculation breakdown
- Months
- Count of complete calendar months between the two dates
- Remainder
- Leftover days after the last full month
Worked example
From 15/01/2026 to 02/04/2026 is 2 full months (to 15/03/2026) plus 18 remaining days.
Assumptions
- Accounts for months of different lengths, including February in leap years.
How this calculator works
This calculator works out how many complete calendar months, plus any leftover days, sit between a start and end date. It's useful for tenancy agreements, loan terms, warranty periods or working out a baby's age in months.
Frequently asked questions
How are partial months handled?
The calculator counts full calendar months first, then shows any remaining days that don't make up a further whole month.
Can I calculate months between today and a past date?
Yes, set either date to today to measure how many months have elapsed since or until an event.
Does it handle different month lengths?
Yes, the calculation accounts for months of varying length, including February in leap years.
Editorial review and responsibility
Reviewed by the CalcAussie editorial team on 21 September 2026. Review scope: Method, Australian terminology, material assumptions, source links and user-facing limitations.
Calculator results remain estimates based on the figures entered. Check material decisions against current official information and report a suspected error so it can be reproduced and corrected.