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 FileMaker Pro Custom Functions

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ListSum ( myList )

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  Average rating: 4.1  (56 votes)
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Tom Fitch, Fitch & Fitch

Add up a list of numbers

Sample Input:
Sample Output:

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


This replaces the list's carriage returns with semicolons so that the Sum function can be used, e.g. Sum(1;2;3). Non-recursive. Works with negative numbers.

Inspired by comments on the SUMLIST function.

Original from May 2011
Updated Aug. 2013
Now works with single (or empty) lists, per Mr. Cheang's comment below. Thanks to him and also to Agnès for pointing out that this only works for up to 1000 values (see comments below). It also doesn't do any other error checking such as if you feed in a bunch of blank lines or other nonsense.

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


5 most recent comments | Show all 10 comments

I m trying to sum up the Grand Totals of Time Billings at the Time Billings Layout. I m pretty novice. What's the function to add in the DB, please? having lost already ... Thank you very much ...

Kostas Papavasileiou, Athens
August 21, 2013 12:08pm

Mr. P, this isn't really a support site (and I don't understand your question).

I suggest or

Tom Fitch, Portland, Oregon
August 21, 2013 4:25pm

Thank you very much! I will do so! Didn't see that was not right on my behalf to ask. Thakn you again.

Kostas Papavasileiou, Athens
August 22, 2013 6:07am

Thanks, Tom---just what I was looking for today.

67% Shotgun

Bill, Portland, Oregon
September 08, 2013 5:14pm

Thanks as well... simplify the first argument to the following:
myList = myList

and it will work for standard deviation as well, e.g.:
result = Evaluate( "STDEV(" & it & ")" )

Mike Gallagher, Ft Lauderdale
February 05, 2014 12:08pm

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

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Answer 6 + 8 =
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