Please Note: This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, 2016, 2019, and 2021. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: Calculating an Age On a Given Date.
Written by Allen Wyatt (last updated February 28, 2025)
This tip applies to Excel 2007, 2010, 2013, 2016, 2019, and 2021
Alan is president of the local Little League baseball team and he needs to know the ages of each child on May 1 of each year. He wonders if there is a formula that will return the age on that day.
There are actually a couple of ways you can approach the task. Assuming that the child's birth date is in cell A1, you could use the following formula in most instances:
=(DATE(YEAR(NOW()),5,1)-A1)/365.25
This formula calculates the date serial number (used by Excel internally) for May 1 in the current year. It then subtracts the birth date in A1 from that serial number. This results in the number of days between the two dates. This is then divided by 365.25, an approximate number of days in each year.
For most birth dates, this formula will work fine. If you want something more precise (the imprecision is introduced by the way in which leap days occur), then you can rely on the DATEDIF function in your formula:
=DATEDIF(A1,"5/1/" & YEAR(NOW()),"y")
This returns the age of the person as of May 1 of the current year. If you want even more detail in the results, try this formula:
=DATEDIF(A1,"5/1/" & YEAR(TODAY()),"y") & " years, " & DATEDIF(A1,"5/1/" & YEAR(TODAY()),"ym") & " months, " & DATEDIF(A1,"5/1/" & YEAR(TODAY()),"md") & " days"
Remember that this is a single formula—make sure it is entered as a single line in whatever cell you place it.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (11858) applies to Microsoft Excel 2007, 2010, 2013, 2016, 2019, and 2021. You can find a version of this tip for the older menu interface of Excel here: Calculating an Age On a Given Date.
Professional Development Guidance! Four world-class developers offer start-to-finish guidance for building powerful, robust, and secure applications with Excel. The authors show how to consistently make the right design decisions and make the most of Excel's powerful features. Check out Professional Excel Development today!
Simple math will tell you what the previous day is (just subtract 1 from today's date). What if you want to know the date ...
Discover MoreIf you need to know the years in which a particular date occurred on a specific day of the week, there are a number of ...
Discover MoreWant to know which day of the month is the first business day? The easiest way to determine the date is to use the ...
Discover MoreFREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)
Got a version of Excel that uses the ribbon interface (Excel 2007 or later)? This site is for you! If you use an earlier version of Excel, visit our ExcelTips site focusing on the menu interface.
FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
Copyright © 2025 Sharon Parq Associates, Inc.
Please Note:
This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, 2016, 2019, and 2021. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here:
Comments