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Days between two dates calculator

Pick two dates and see the days, weeks and business days between them.

Estimated result for information only. Not legal or tax advice. Updated for 2026.

What it calculates

  • Calendar days between the two dates.
  • Full weeks and remaining days.
  • Business days Monday to Friday (holidays are not removed).

When it helps

For deadlines, contracts, vacations, pregnancies or any countdown.

Frequently asked questions

Is the start day counted?

It calculates the difference between the two dates, without counting the start day.

Does it remove holidays?

No, only Saturdays and Sundays.

Can the end date be before the start?

Yes, the calculator orders them.

Is it free?

Yes.

How do I count days between dates in Excel?

Subtract the dates (=B1-A1) or use =DAYS(B1,A1). For business days use =NETWORKDAYS(A1,B1).