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 FileMaker Pro Custom Functions

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FormatThousands ( Number ; Precision ; Separator )

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  Average rating: 4.1  (34 votes)
  Discuss this Custom Function

Rob Poelking, Excelisys

Formats a number separating the thousands by a user specified character.

Sample Input:
FormatThousands ( 12345678.9012345678 ; 3 ; " " )
Sample Output:
12 345 678.901

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


Formats any real number separating the thousands position by a user specified character and also specifies the precision of digits after a decimal.

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


This function works great, but it won't work with negative numbers properly.

Try changing the fifth line to:
neg = If ( GetAsNumber ( number ) < 0; "-"; "") ;
and that should fix it.

If you need a function that doesn't force the result to a fixed length decimal number, try FormatThousands (textNum) found at

Gary Amstutz, Fort Wayne, IN
February 09, 2016 2:49pm

Thanks Gary, I wrote that some time ago and honestly can't remember why I wrote it that way.

Rob, Cleveland, OH
February 10, 2016 5:03am

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