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How to calculate expiration dates in Excel?

For example you have a membership card, and it will be expired after 10 weeks. How to quickly calculate the expiration date in Excel? This article will introduce two tricky ways to solve it.

Calculate expiration dates with Excel formulas

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arrow blue right bubble Calculate expiration dates with Excel formulas

We can apply formulas to calculate expiration dates in Excel easily. For example the start date is 8/14/2015 in Cell A2, and the expiration period is 3 months, here I will guide you to calculate the expiration date as follows:

1. Select a blank cell, type the formula =EDATE(A2,3) (In the formula 3 means "3 months") into it, and then drag the Fill Handle to the range as you need.

2. Sometimes the calculated expiration dates may not display in date format. If so, please keep selecting the calculated expiration dates, and click the Home > Number Format drop down list > Short Date. See screenshot:
doc expiration dates 3
Now the calculated expiration dates are showing in the proper date formatting as below screenshot shown:

Note: Sometimes, the expiration period may be not measured as Month, such as 45 days, 2 years, or 10 weeks. In these conditions, please calculate expiration dates with proper formulas in below table:


Expiration Period


Expiration date


45 Days




3 Months




2 Years




10 weeks



arrow blue right bubble Calculate expiration dates with Kutools for Excel

Kutools for Excel also collects some useful formulas to quickly calculate expiration dates in Excel. Please do as follows:

Kutools for Excel - Combines more than 300 Advanced Functions and Tools for Microsoft Excel

1. Select a blank cell for locating the expired date, and click the Kutools > Formulas Helper, and then select one formula based on your expiration period. In our example, I select the Add months to date.
doc expiration dates 01

2. In the opening Formula Helper dialog box, specify the start date into the Date Time box, type the number of months into the Number box. In our example, I specify the A2 into the Date Time box, type 3 into the Number box.
doc expiration dates 5
Note: If you need to type the start date directly into the Date Time box, please embrace the date with quotes, such as "8/14/2015".

3. Click the Ok button. Keep selecting the formula cell, and drag its Fill Handle for applying this formula to the range as you need.

This Formula collection also provides formulas to calculate expiration dates if expiration period is measured with year, week, days, etc. See following screenshots:

If expiration period is 2 years:
doc expiration dates 7

If expiration period is 10 weeks:
doc expiration dates 8

If expiration period is 45 days:
doc expiration dates 6

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Demo: calculate expiration dates in Excel

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