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.

  • Profile Image

    The conditional calculation field on my form isn't working. The fields are missing from the preview.

    Asked by windsongtravel on May 18, 2017 at 05:23 PM

    I am trying to calculate 4 fields and add them up into the fifth field. I want the fifth field to be "read-only" and possibly greyed out so people filling out the form know they don't need to fill it out.

    I haven't uploaded the form yet, as it's not working.

    I've tried a couple of different methods including several widgets. What am I doing wrong?

    The screenshot is of the missing fields.


    Edit: Sorry, I didn't explain myself well. Those fields are in the form I've created but aren't appearing if I publish the form. This is the conditional calculation I have set for those fields:


    Page URL:

  • Profile Image
    JotForm Support

    Answered by Kiran on May 18, 2017 at 07:37 PM

    I am not able to find the fields from the screenshot on the form that you have provided. However, you may mark a field as read-only from the Advanced section of the field properties. 

    Hope this information helps! Please get back to us if you need any further assistance. We will be happy to help. 

  • Profile Image

    Answered by windsongtravel on May 18, 2017 at 07:43 PM

    Thanks for your response, but I didn't explain myself well. I have edited the question with a new screenshot.

  • Profile Image
    JotForm Support

    Answered by EltonCris on May 18, 2017 at 11:15 PM

    You do not actually need a condition to achieve that. You just have to use the form calculation widget as the 5th field then add the fields in the calculation wizard.


    If you want the calculation widget field to be read-only, click the 3 dots below the numbers found in the calculation wizard. Go to Options tab then check Result field is read only.  See screenshots below:

    Hope this helps!

  • Profile Image
    JotForm Support

    Answered by EltonCris on May 18, 2017 at 11:16 PM

    Sorry, here's the demo form: https://form.jotformpro.com/71379033694968

    You can clone this form if you want http://www.jotform.com/help/28-Cloning-a-Form-from-a-Web-Page.