Date Difference Calculator

Count the days, weeks, and months between two dates.

Start date

End date (defaults to today)

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Total days

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Weeks

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Years / months / days

How to use

Pick a start date and an end date.
Read the total number of days between them.
Also see the gap expressed in weeks and in years, months, and days.

Frequently asked questions

Does the result include both the start and end dates?

The total counts the number of days from the start date up to the end date. Add one if you need both endpoints counted (inclusive).

Can the end date be before the start date?

Yes. The tool shows the absolute difference regardless of order.

🔒 This tool runs entirely in your browser. Nothing you enter is uploaded, logged, or stored.

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