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How to count days between two dates including start date in Excel?

Author Xiaoyang Last modified

In Excel, we can calculate days between two dates by using a simple formula: =End date –Start date, but, this formula will exclude the start date. If you need to count days between two dates including the start date, this article will help you.

Count days between two dates including start date with formulas

arrow blue right bubble Count days between two dates including start date with formulas

The following formulas can help you to solve this task as you need, please do as follows:

Enter any one of the following formulas into a blank cell where you want to get the result:

=IF(OR(B2="",A2=""),"",INT(B2-A2+1))

=IF(NOT(OR(ISBLANK(B2),ISBLANK(A2))),B2-A2+1,"")

And then drag the fill handle down to the cells where you want to apply this formula, and all the days between two given dates have been calculated, see screenshot:

apply a formula to count days between two dates including start date

Note: In the above formulas, B2 is the end date and A2 is the start date cell, you can change them to you need.

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