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

    I need a calculator that does decimals and percentages

    Asked by lebaus on December 05, 2013 at 09:46 AM

    I want to add a calculator to my form that includes decimals and percentages. I do not write code.

    I found this calculator online, are there widgets that can be used inside of the form using the HTML code feature?

    Page URL:

  • Profile Image

    Answered by lebaus on December 05, 2013 at 09:55 AM

    Or if I can get something simple. I need my customers to be able to calculate their estimated taxes since it doesn't add it to the form.

    So I nned something like this

    Rent: ________

    + Guest Rent: _________

    + Pet Rent: __________

    + Other: __________

    Subtotal: __________

    x 11% _______ (able to change taxable value)

    = Total w tax: _______


    I already have a payment form. Need to calculate taxes.

  • Profile Image

    Answered by pinoytech on December 05, 2013 at 11:18 AM


    We have a new feature called Calculate Field which you can use to achieve that in your form. Please follow this simple steps:

    1. Click on the field you want to "show" the total calculation, click "Settings" icon.

    2. Find and Click "Calculate Fields" button

    3. This will open up the calculation wizard, just simply click on each "form fields" at the right side. So, if you want to add form field number entries, just simple make

    [{field1} + {field2}]

    If you need further assistance, please feel free to contact us at anytime.

  • Profile Image

    Answered by lebaus on December 05, 2013 at 11:41 AM
    This is not working. I ran the calculator on "Subtotal" and on "Total w
    see screen shot attached of Subtotal Calculation
  • Profile Image

    Answered by pinoytech on December 05, 2013 at 12:13 PM


    I've fixed the issue of your form for you. Kindly check your form now: http://form.jotformpro.com/form/33383307545960

    Feel free to contact us again if you need further assistance at anytime.

  • Profile Image
    JotForm Support

    Answered by jonathan on March 03, 2014 at 08:38 AM


    We are not able to recieve your latest response.

    Please click on this link to retry sending your message again.