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Excel SUM Function

The SUM function adds all values you specified. The values can be numbers, cell references, ranges, arrays or a mix of all four.

sum function 1


=SUM(number1, [number2], ...)


  • number1 (required): The first value to be summed.
  • [number2], … (optional): The second and up to 253 more values to be summed.

Return Value

The SUM function returns a numeric value.

Function Notes

  • If there are any error values in any of the arguments, SUM will return the first error value.
  • SUM treats blank cells as 0s.
  • If a text value that cannot be interpreted as a numeric value is referenced by the SUM function, SUM will treat it as 0; If the text value is supplied directly to the SUM (e.g., =SUM(“kutools”)), the function will return the #VALUE! error.
  • If a logical value is referenced by the SUM function, SUM will treat it as 0; If the logical value is supplied directly to the SUM, the function will treat is as a number (TRUE=1, FALSE=0).


To get the sum of the numbers on the first row of the table as shown below, please copy or enter the formula below in cell F3, and press Enter to get the result:


√ Note: In the formula above, we used the actual values. However, in the case that you have a table as shown below, cell references are better choices than the actual values. Since you can just drag the fill handle down to apply the formula to the below cells after entering the formula with cell references in the top cell. The formula with cell references is as followed:


sum function 2

Related functions

Excel SUMIF Function

In Excel, the SUMIF function can help to sum cells based on one criterion, this article will explain this function's syntax and introduce some examples for using the SUMIF function.

Excel SUMIFS Function

The SUMIFS function in Excel can help to sum cell values based on multiple criteria, this tutorial will explain the SUMIFS function's syntax and some examples for using this function.

Excel SUMPRODUCT Function

In Excel, the SUMPRODUCT function can be used to multiply two or more columns or arrays together, and then get the sum of products. In fact, the SUMPRODUCT is a useful function which can help to count or sum cell values with multiple criteria like the COUNTIFS or SUMIFS function. This article will introduce the function syntax and some examples for this SUMPRODUCT function.

Excel SUMSQ Function

The SUMSQ function returns the sum of squares of supplied values.

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