Date Calculator

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

How this calculator counts days

The day count is inclusive of the difference between the two calendar dates. Weeks are the day total divided by seven, and the month figure is an approximation based on average month length.

Frequently asked questions

Does this account for leap years?

Yes — the calculation uses actual calendar dates, so leap years are automatically accounted for.

Can the end date be before the start date?

Enter the earlier date as the start date for an accurate positive day count.