Months Between Dates Calculator
Unlike a simple day count, this expresses the duration between two dates as full months plus the remaining days โ exactly how a rental or contract period is usually described.
Result
Fill in the fields to see your result.
Formula
Months = difference in calendar months, remaining days = the leftover that no longer forms a full month
The calculator first counts the number of full calendar months between the two dates. It then adds that many months to the start date to see how many days remain until the end date โ those are the remaining days.
Worked examples
15 January 2025 to 24 July 2026
โ 18 months and 9 days.
Common mistakes
- Dividing the total day count by 30 to estimate months, which drifts from calendar months over long periods.
When to use it
- Calculating the remaining duration of a rental contract or subscription.
Frequently asked questions
Does the order of the dates matter?
No, the calculator determines automatically which date comes first.
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