You can use the DateTimeDifference function to calculate the age.

Please find the below article for more details.

https://collaborate.pega.com/question/how-calculate-age-when-date-birth-given

Hi,

Please find following expression for calculating age:

@(Pega-RULES:ExpressionEvaluators).round(@(Pega-RULES:DateTime).DateTimeDifference("19951111T000000.000 GMT",@(Pega-RULES:DateTime).CurrentDateTime(), "Y")) +1  

Hope this helps 

Thanks

Hi ,

You can refer the below link for this requirement.

https://collaborate.pega.com/question/age-calculations

Thanks,

Hi 

I promise the below article will give you a better solution for you.

http://www.technaandi.com/pega-tutorials/pega-real-time-scenarios/how-to-calculate-age-from-date-of-birth-in-pega/