How To Auto Calculate The Sum Of Input Values Using Jquery Or Javascript

In this tutorial, we will learn to auto calculate the sum of input values using jQuery or JavaScript. Sometimes we need addition, subtraction, division, multiplication, and percentage, etc. in a webpage on the fly i.e. without reloading the page or submitting the page. With the help of JavaScript events, we can find the values.

In this example, three input fields are taken as shown in the image above. We are finding the amount of some values based on the given percentage.

Also read, add rows to table dynamically using JavaScript

Required Steps to get the sum of input values using Jquery

• Declare all the input fields with the id attributes of each input field to find the desired values in each row.
• Also declare the input fields with the class attributes of each input field to collect the sum of all the desired fields. Every time we do calculations, the class attribute will help us to find the sum of all inputs.