**lonerider**At first, excuse my bad englis, I´ve learned it at school long time ago.

And now my problem.

Is it possible to calculate the age of a person based on her birthday?

Thank you for your help

Greetings

Lone Rider

**Carina**Hello Lone Rider

It is already possible to calculate the age by adding the birthdate.

1. Add 2 datefields, one of them with default date of today:

Then add a form calculation widget with the formula (todayfield-birthdatefield)/365:

You can test and clone the demo form:

http://form.jotformpro.com/form/50974521706962?

Let us know if we can assist you further.