Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Calculating an Age On a Given Date.

Calculating an Age On a Given Date

by Allen Wyatt
(last updated August 10, 2019)

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"

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (5415) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Calculating an Age On a Given Date.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Understanding Smart Cut and Paste

Editing is generally made easier by a feature that Word calls smart cut and paste. If you prefer, you can turn the ...

Discover More

Setting Superscript Height in the Equation Editor

The Equation Editor makes it easy to create and add equations to your documents. Here's how to adjust where the ...

Discover More

Counting Non-Blank Cells

Need to count the number of cells in a range that are not blank? You can use the COUNTA function of a more complex ...

Discover More

Comprehensive VBA Guide Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out Mastering VBA for Office 2010 today!

More ExcelTips (menu)

Deciphering a Coded Date

It is no secret that Excel allows you to work with dates in your worksheets. Getting your information into a format that ...

Discover More

Incrementing Months in Dates

Excel can easily store dates. If you want to increment a date by one month, there are a number of ways you can accomplish ...

Discover More

Calculating the First Business Day of the Month

Want to know which day of the month is the first business day? There are a few ways you can check to make sure the date ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is two less than 5?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.