## Calculate expiration date in Excel

If you need to calculate an expiration in the future, you can use a variety of formulas. See example below; Formula =A1+30 // 30 days Explanation In the example shown, the formulas used in column D are: =B5+30 // 30 days =B5+90 // 90 days =EOMONTH(B7,0) // end of month =EDATE(B8,1) // next month =EOMONTH(B7,0)+1 …