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.
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With Form Calculation Widget you can perform calculation in the form. Inside of this guide you can find how to perform calculation in the form:
Note that the calculation function would only work with the following fields with Numeric entries/options:
1. Radio Button
5. Text Area
Hope this will help. Let us know if you need further assistance.