Date difference

Days Between Dates Calculator

Use this days between dates calculator to find the number of days, weeks and business days between two dates. It is helpful for project planning, contracts, study periods and travel windows.

  • Compare any two dates with one calculation.
  • Estimate total days, weeks and weekday counts.
  • Useful for both countdown and planning pages.
Need one future date only?Use the how-many-days-until page for a simpler day count.Need date math?Add or subtract time from a base date with the date calculator.

Days Between Dates Tool

Select a start date and end date to calculate the distance between them.

Total days0
Total weeks0
Business days0

Select two dates to calculate the difference.

How to Use It

Choose the start date

Select the first day in the period you want to measure.

Choose the end date

Select the final day and optionally count both the start and end dates.

Review day and week totals

Check the total days, approximate weeks and business day estimate for planning context.

FAQ

Does this calculator include both dates?

It can. Turn on the checkbox if you want to count both the start and end dates.

Can I use it for business days?

Yes. The result panel includes a simple weekday-based business day estimate.

Is it free to use?

Yes. The calculator is free online.

Can I use it on mobile?

Yes. The page is mobile friendly.

Related Tools

Age CalculatorCalculate age-related date distances and milestones.How Many Days UntilCheck a single future date without selecting two dates.Date CalculatorAdd or subtract days, weeks, months or years from a base date.Birthday CountdownMove from date differences to a live event countdown.