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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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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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    Form Calculation Keeps locking up & wont add up

    Asked by tennisclay on May 23, 2017 at 06:03 PM

    I cannot get my form calculation to add up and have tried various forms of adding.  Additionally the method I believe I need to use keeps locking up.  Im using the latest version of Google Chrome

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    JotForm Support

    Answered by BDAVID on May 23, 2017 at 08:10 PM

    Could you let us know what is the form you are working on? We will be glad to test it.

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    Answered by Tim on May 24, 2017 at 07:23 AM

    Stillwater Youth Registration

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    JotForm Support

    Answered by liyam on May 24, 2017 at 09:09 AM


    I checked your form and it appears to be working fine following the conditions set on your form

    So on your condition, if the days are not checked or the required number of days is not met, the registration amount will not forward to the calculation widget. 

    Hope this gives clarification to your concern.


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    Answered by tennisclay on May 24, 2017 at 09:14 AM

    If I would like the days selected; Monday, Tuesday, etc, to not be mandatory can I make the calculation work still?  If so can it work like this, or do I need to change something?

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    Answered by tennisclay on May 24, 2017 at 10:45 AM

    I have removed the days, Monday, Tuesday, etc check boxes and the addition in calculation still does not work

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    JotForm Support

    Answered by BDAVID on May 24, 2017 at 12:45 PM

    I have cloned your form, and deleted the "Insert" calculations, as this can be accomplish simply by using "Form Calculations" widgets.

    What I did was to add a hidden "Calculation" widget to get the total for each class option: https://www.jotform.com/help/259-How-to-Perform-Form-Calculation-Using-a-Widget 

    Then, I sum all the totals in the "Calculation" widget that is passed to the payment field:

    Please try my clone version: https://form.jotformpro.com/71434690580963 

    And clone it in your account if you want to use it: https://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL 

    Let us know if you need more help, we will be glad to assist you.