Hi Gilles! Thanks for your quick reply.
With both solutions, I remain with an exclamation mark if the DOB is blank.
However, what’s weird is that with the first option, the > isn’t blue but white, so it looks like the formula is using it as an actual character and not as part of the formula ?
In this topic, I had found that if I ONLY write down what Jim said at the end, it shows up empty and works fine :
IF({Date},INT(YEARFRAC({Date}, TODAY())),“”)
But as soon as I replace the formula above with my own, it doesn’t work anymore… Is maybe my formula wrong?
Thanks again for your help 