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Question
Hi Tom !  Tom i have birth date in A1 for ex. 27/12/1978 and in B1 i enter formula =int((today()-a1)/365.25  i dont get answer it displays #VALUE! but when i change the system date format to dd/mm/yyyy it gives perfect age. please Tom i dont want this way to get it done. i want to get age without changing system date format.

pls help

Sabah

Answer
Sabah,

Based on your description, it looks like your 27/12/1978 is being stored as a string rather than as an excel date.  This formula should handle either situation but if 27/12/1978 is stored as a string, the formula assumes the string in written in the dd/mm/yyyy format with no spaces.  So if it was Dec 5, 1978, the formula would expect the cell to contain  "05/12/1978"  or if it was March 5, 1978 it would expect "05/03/1978"

=IF(ISTEXT(A1),INT(TODAY()-DATE(RIGHT(A1,4)*1,MID(A1,4,2)*1,LEFT(A1,2)*1))/365.25,INT(TODAY()-A1)/365.25)

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Regards,
Tom Ogilvy
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This topic answers questions related to Microsoft Excel spreadsheet (or workbook) stand-alone or Mircrosoft Office Excel including Excel 2003, Excel 2007, Office 2000, and Office XP. You can get Excel help on Excel formulas(or functions), Excell macros, charting in Excel, advanced features, and the general use of Excel. This does not provide a general Excel tutorial nor the basics of using a spreadsheet. It provides specific answers to using Microsoft Excel only. If you do not see your Excel question answered in this area then please ask an Excel question here

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Tom Ogilvy

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Selected as an Excel MVP by Microsoft since 1999. Answering Excel questions in Allexperts since its inception in 2001. Able to answer questions on almost all aspects of Excel's internal capabilities. If seeking a VBA solution, please specify that in your question itself so I give you the answer you want. [Excel has weak protection - if you are distributing an application, I don't answer questions on how to protect your project from your users.]

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Extensive experience.

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Master of Science (MS) degree Operations Research (ORSA)

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Microsoft MVP in Excel.

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