How do I compute a child's age in months?

I have two DATE fields to compute the age from,

child_dob and school_date

both are 4-digit dates. I am not sure if I should use a Calculation field or scripting logic. Thanks in advance for advice.

Try:

12 * ( Year ( EndDate ) - Year ( StartDate ) ) + Month ( EndDate ) - Month ( StartDate )

- ( Day ( EndDate ) < Day ( StartDate ) )

This assumes that a person becomes a month older on the same day-in-month as his birthday or when the month ends - whichever happens first.





Alternatively, you could just do a rough estimate based on the length of average month:

Div ( EndDate - StartDate ; 30.436875 ) 

Hi Comment ... I gave the second suggestion a try and it's perfect.

The first suggestion simplifies what I've been seeing from other sources - it will be a good exercise for me to learn syntax.

As always, THANK YOU! :laugh2: