Get the age automatically from birth date

Also, can you make the birth date automatically populate the age on the form?

We do not have a specific widget that calculates age but there's a workaround using form calculation.

Demo: https://form.jotform.com/61880675038968

Feel free to clone this form so you can figure out the whole setup. Guide: https://www.jotform.com/help/28-Cloning-a-Form-from-a-Web-Page

Here's how I did it:

1. You need are 2 Date Picker fields and 2 Form Calculation Widgets in your form

2. In the 2 Form Calculation Widgets, you need to define formula on each of them. The first calculation field (Days) gets the number of days, here's the formula:

In the second calculation field (Age), this will calculate the Age base from the given birth date by the user using the math Floor function.

If you need further assistance, let us know.