I need help creating my form.

I am trying to create a form where people can choose multiple quantities, colorsand sizes.I need tne form to calculatethese for payment. Please help

It is possible to setup options such as sizes and quantities in your payment form, please check this guide: https://www.jotform.com/help/225-How-to-Add-Options-to-Payment-Forms 

For payment form related questions, you might find these helpful:

https://www.jotform.com/help/47-Order-Form-Basics 

https://www.jotform.com/help/165-Setting-Up-Your-First-Order-Form 

Let us know if you have more questions, we will be glad to assist you.