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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    Can a sum be calculated by entering a number into a blank box?

    Asked by DanMyers on February 10, 2013 at 09:34 PM

    Im creating a residential estimate for my iPad. Lets say I have a box on my Jot Form for Square Footage. Is there a way to have that number calculate a price per square foot by a pre-entered formula?

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    JotForm Support

    Answered by EltonCris on February 10, 2013 at 11:34 PM


    You can't do calculations of the text box fields directly to JotForm as of now. However, that's possible using your form source code and apply some javascript codes which may help create the calculation function. Can you provide to us the exact formula so we can help you do the coding?

    We'll await your reply. Thanks!