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 FileMaker Pro Custom Functions

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YearsInteger ( date1 ; date2 )

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  Average rating: 4.1  (33 votes)
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Kieren MacMillan, kierencom

Returns an integer year count between two dates, such as a person's age.

Sample Input:
YearsAsInt( birthdate ; Get ( CurrentDate ) )
Sample Output:

 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed


This calculation returns an integer year count between the two supplied dates -- perfect for calculating someone's age. It correctly handles all cases and is unaffected by (and unconcerned with!) leap year and other calendar variations/anomolies. This is accomplished by converting each date to a "floating point number" and then simply taking the integer portion of the difference.

Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it


Looking @ this & noticed you accounted for leap year using a different approach but same answer.

Great Job!

QUick and neat..


Ian Moree, Nassau Bahamaas
March 28, 2012 3:05pm

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