What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
The only function available to do the data calculation available in "Form Calculation" widget is "dateSrting()" where you can only add number of days. Unfortunately, within the form calculation widget, it is not possible to add number of years. You can calculate the number of days and then add 365 days to the date field to increase it by one year.