SUM Function in Excel

This post will guide you how to use Excel SUM function with syntax and examples in Microsoft excel.


The Excel SUM function will adds all numbers in a range of cells and returns the sum of these values. You can add individual values, cell references or ranges in excel.

The SUM function is a build-in function in Microsoft Excel and it is categorized as a Math and Trigonometry Function.

The SUM function is available in Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000, Excel 2011 for Mac.


The syntax of the SUM function is as below:

= SUM(number1,[number2],…)

Where the SUM function arguments are:

  • number1 -This is a required argument. A numeric value that you want to sum.
  • [number2],…– This is an optional argument.  Numbers that you want to find the sum of.


  • The SUM function can accept up to 255 arguments

Excel SUM Function Examples

The below examples will show you how to use Excel SUM Function to return the sum of a set of numbers.

#1 To get the sum value of Cell B1 and B2, just using the following excel formula:


excel sum function1


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