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How to Count Cells that Contain Errors

Read time: 29 minutes

We can Count Cells that Contain Errors in a range with a formula that combines the SUMPRODUCT and ISERROR functions. The steps below will walk through the process.

Figure 1: How to Count Cells that Contain Errors

General Formula:

=SUMPRODUCT(ISERROR(range)*1)

Formula

=SUMPRODUCT(ISERROR(B4:B11)*1)

Setting up the Data

  • We will set up the data by inputting the DATA into Column B
  • Cell C4 in Column C is where we want the formula to return the result for the number of cells with errors

Figure 2: Setting up the Data

Count Cells that Contain Errors

  • We will click on Cell C4
  • We will insert the formula below into the cell
    =SUMPRODUCT(ISERROR(B4:B11)*1)
  • We will press the enter key

Figure 3: Count of Errors in Range B4:B11

Explanation

The ISERROR function checks the range if they contain errors. The result is returned as an array of TRUE or FALSE.

{FALSE;FALSE;TRUE;TRUE;FALSE;FALSE;TRUE,FALSE}

TRUE represents the cells with errors and is converted to 1 so that the array looks like this: 

{0;0;1;1;0;0;1,0}

The result of this array is then multiplied by 1 and the result is summed and returned as the result by the SUMPRODUCT Function.

Note

We can use the SUM function instead of SUMPRODUCT function. However, we need to enter as an array formula using CTRL + SHIFT + ENTER. The formula is:

=SUM(ISERROR(range)*1)

ISERROR function counts all errors. If you use ISERR function, it will exclude #N/A

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Another blog reader asked this question today on Excelchat:
Here are some problems that our users have asked and received explanations on

I want Excel to count a range of cells that contain specific data
Solved by B. L. in 13 mins
I need to count and sum the cells with any value in them. These same cells already contain a formula. How do i get my countif function to ignore the formula and count only those cells that contain a value?
Solved by K. H. in 21 mins
Help please. I have two sheets, one contains a column that has a list of common errors, the other has a column from a log file that has all the errors. I need something that will check through all the errors and return a count of lines that do NOT contain any text from the common errors. In other words lines that have unknown errors. Additionally it would be useful to highlight the lines in all the errors to show unrecognized errors in red. Any ideas?
Solved by T. L. in 29 mins

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