Calculating age with non-Western calendars

Hi All,

I’ve successfully used a formula like the one posted here to automatically calculate an age based on an input date of birth.

I’m creating a new form to use in Ethiopia, where most people will not know their DoB on the Gregorian calendar. I created an integer question to collect the date, and then select one questions for the month/year on the Ethiopian calendar.

I was wondering if there was a way to convert the today() value into another calendar in order to automatically calculate the age, or alternatively to somehow convert my input values into the Gregorian calendar so I can use the today() value. Something like Excel’s DATE function.