Excel Formula: Calculate Retirement Date

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If the retirement age is fixed, supposing is 60, as a personal clerk, how can you get the retirement date of each clerk whose birthdays are different in your company? This tutorial provides a formula to directly calculate the retirement date based on the given birth date in Excel.

If you want to follow along with this tutorial, please download the example spreadsheet.
doc calculate difference between time 5

Generic formula:

EDATE(birthdate,12*retirement_age)

Arguments

Birthday: the date that the staff was born.
Retirement_age: the retirement age of staff..

Return Value

This formula returns a serial number, just formats the result as date format. As in Excel, the dates are stored as serial numbers for better calculating, it counts days starting from Jan 1, 1900. For instance, today , August 5, 2020, is 44048 days far from Jan 1, 1900, which means that today’s serial number is 44048.

How this formula work

To calculate the retirement date based on the birthdate in cell C3:C6, and the retirement age is 60, please use formula like this:

=EDATE(C3,12*60)

Press Enter key to get the first serial number, then drag fill handle down to fill this formula to get all retirement dates.
doc calculate difference between time 5

Then format the results as date format by clicking Home > Number Format drop-down menu > Short Date or Long Date.
doc calculate difference between time 5

Explanation

EDATE function: the EDATE function returns a serial number which is n months in future or past. In other words, it can be used to calculate the past or future date by adding or minus the specified number of months.


Relative Formulas

Relative Functions


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