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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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    Asked by digiosolutions on May 15, 2014 at 03:02 PM


    This is a re-post of a comment on Introducing Field Calculations for Forms

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    JotForm Support

    Answered by TitusN on May 15, 2014 at 05:05 PM


    It has been implemented.

    If you have a calculation field on the form - all you need to do is:

    1. Open the paypal wizard

    2. Click on custom amount payments

    3. Select the calculation field from "Get amount from" dropdown field  as shown in the illustration

    Let us know if this helps

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    Answered by dorsetholidaylets on May 15, 2014 at 05:53 PM

    Hi this is a great step in the right direction, the only small point is it would be better to be able to use the result from the calculation in the Paypal amount. It appears that you have to caculate the amount first and show this and then show the amount again in the PayPal field to submit to PayPal. 

    It would also be great to be able to add posateg costs in the same way as you can for sellig products.


    Best regards David.

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    JotForm Support

    Answered by jonathan on May 15, 2014 at 08:46 PM



    I have created the new separate post for your inquiry here http://www.jotform.com/answers/378121

    Please refer to that thread for the updates.