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 FileMaker Pro Custom Functions

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cf_RomanNumeral ( _number ; _digit ; _Kmarker )

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  Average rating: 4.3  (39 votes)
  Discuss this Custom Function

Christopher Gauntt, Cordega Solutions

Swaps out arabic numbers for roman numerals

Sample Input:
cf_RomanNumeral ( 953214 ; 1; "" )
cf_RomanNumeral ( 953214 ; 1 ; "p" )
Sample Output:

(note: normally, the ̅ character will merge with the character preceding it, if the font supports it. Otherwise use the "p" option)

 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 recursive function swaps out arabic numbers with roman numerals.

You have the option of indicating multiples of 1000 over 3,999 with either parenthesis or an overline over the letter. e.g. (XIV)CCII = 14,202

For numbers that are 0 or less, it will return "N" which stands for null.

This function can calculate roman numerals for numbers up to 3,999,999.

Requires FileMaker Pro version 10 or later to use the "Char" sub-function

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


Very great function.
If you have other functions to buy, I'm interested.
Best Regards

Phil, Switzerland
June 20, 2014 2:05pm

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