Highlight duplicate values

In the previous post, we talked that how to highlight duplicate rows based on a certain number in excel. And this post will teach you how to highlight duplicate values in the range of cells in excel. Normally, you may be need to identify duplicate values with a range of cells in Excel. And there is one of the fasted way that is using conditional formatting feature in Microsoft Excel.

Highlight duplicate values

You can easily identify duplicate values in a list, just do the following:

1# Select the range of cells that you want to check (or you can click one single cell firstly, then press shortcut CTRL +A)

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2# On HOME Tab, click Conditional Formatting command in the styles group.

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3# click Highlight Cells Rules, then select Duplicate Values from the drop-down menu list.

4# select formatting styles, then click OK button to identify the duplicate values.

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5# you will see that the duplicate values in the range will now be highlighted.

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Highlight triplicate values

The above way will identify the duplicate values including duplicates, triplicates, or quadruplicates. If you only want to highlight triplicate values in your data, how to do it? At this time, you may be need to create your own formula to apply the conditional formatting.

Assuming that you want to highlight triplicate values in the range of cells A2:C4, then you can use the following formula based on the COUNTIF function:


This formula will check if the value of Cell A2 have three duplicates in the range A2:C4. If returns TRUE, then excel conditional formatting will highlight the color of cells.

Let’s see the below steps:

1# select the range of cells in your table

2# on the HOME tab, click the Conditional Formatting command under Styles group. Then select New Rules… from the drop-down menu list.

3# the New Formatting Rule window will appear.

4# select the Use a formula to determine which cells to format option under Select a Rule Type: box, and then enter the above formula in the Format values where this formula is true

5# click the Format… button, then the Format Cells window will appear.

6# in the “Format Cells” window, switch to the Fill tab, choose the background color, and then click OK button. You can also switch to other tabs to tweak the settings as you want.

7# back in the New Formatting Rule window, you can see a preview of your rows background color. Then click OK button.

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8# let’s see the result:

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If you want to highlight the duplicate values that is equal to the value of A2 in range A2:C7, and the duplicate values are more than 3 times, you can use the following formula as the conditional formatting rule.


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Related Functions

  • Excel COUNTIF function
    The Excel COUNTIF function will count the number of cells in a range that meet a given criteria. This function can be used to count the different kinds of cells with number, date, text values, blank, non-blanks, or containing specific characters.etc.= COUNTIF (range, criteria)…

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