how do i calculate years and months of service in excel?
Then insert this formula (where the start dates are in the D column and the end dates in the E column): =DATEDIF(D2,E2,"y") & " years, " & DATEDIF(D2,E2,"ym") & " months ". Here's what it looks like in Excel (color added for clarity): Be sure to format the D and E columns to display dates (see screenshot below).