How to add a comma in numbers?

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    Asked on November 06, 2021 at 11:22 AM


    I'm trying to insert the comma in a number that is calculated using the form calculator. Please see my form, "Add a comma to number" or

    For instance, if you look at the "paragraph" field that I use in the form, it shows the total of number one + number two. This works fine if I'm adding any number under 1,000 (e.g. 500+200 = 700).

    However, if I add numbers that total over 1,000, then I want the paragraph field to show the number with the comma in it. Right now, if I were to add (for example) 1,000 + 2,000 then the total number in the paragraph field shows "3000" but I want it to show "3,000".

    Is there a way to 1) detect if the number in the total field is 4 digits and 2) if it IS 4 digits to insert a comma between the first and second digit?

    Thank you for your help.

  • Profile Image
    Answered on November 06, 2021 at 12:23 PM

    Hi there,

    Thank you for writing to us!

    If you want to separate large numbers with a comma, you can use the commaSeparate() Math Function. 

    Reference: Form Calculation - Math Function Reference

    It will include comma separators in large numbers.

    You should use the following format: commaSeparate(number value)

    Here is an example:


    I hope that helps. Please let us know if you need further assistance regarding this matter.

  • Profile Image
    Answered on November 06, 2021 at 12:29 PM

    You can use the commaSeparate function in the Form Calculation field. No need to use substring widgets.

    Here's how:


    Here's a demo form: