Formula to calculate participant age at time of program


I’m trying to create a formula to calculate the age our participant (board item) was at the time they participated in our program (timeline)

Currently the formula I have is:

IF({Birthday},INT(YEARFRAC({Birthday}, {Program Date#End})),“undetermined”)

This formula works, however if the program timeline column is left blank, it generates the exclamation point error. I would like it to also say “undetermined” or “n/a” instead of the error message.

Your help is appreciated!


Here you go:

IF(AND({Birthday}, {Program Date#End}), INT(YEARFRAC({Birthday}, {Program Date#End})), "undetermined")

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