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Date Difference Calculator

Calculate the number of days, weeks and months between two dates.

Last updated: 12 Aug 2026

Quick answer

The date difference is the gap between two dates. For example, from 1 Jan 2025 to 31 Dec 2025 is 364 days (about 52 weeks). Enter the two dates above to get the difference in days, weeks and months.

Find the gap between two dates in days, weeks and months. Useful for deadlines, notice periods, leave and event planning.

How to calculate the difference between two dates

  1. 1 Enter the from date.
  2. 2 Enter the to date.
  3. 3 We show the difference in days, weeks and months.

Frequently asked questions

How do I calculate days between two dates?
Subtract the earlier date from the later one; this tool does it and also shows weeks and months.
Does it include both dates?
It counts the number of days between the two dates (the span), not counting the start day twice.
Can I use future dates?
Yes — enter any two dates, past or future.

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