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How to count the number of unique and distinct values from a list of column?

Supposing, you have a long list of values with some duplicate items, now, you want to count the number of unique values (the values that appear in the list only once ) or distinct values (all different values in the list, it means unique values +1st duplicate values) in a column as left screenshot shown. This article, I will talk about how to deal with this job in Excel.

Count the number of unique values from a list of column with array formula

Count the number of distinct values from a list of column with array formula


Count the number of unique values from a list of column with array formula

To count only the unique values in a column, please apply the below formula:

1. Enter or copy the below array formula into a blank cell:

=SUM(IF(COUNTIF(A2:A12,A2:A12)=1,1,0))

Note: In the above formula, A2:A12 is the list of data that you want to count unique values.

2. Then, press Ctrl + Shift + Enter keys together, all unique values which appear in the list only once has been counted as following screenshot shown:


Count the number of distinct values from a list of column with array formula

If you want to count the number of all unique values +1st duplicate values in a column, the below formula may help you.

1. Please enter or copy the below array formula into a blank cell:

=SUM(IF(A2:A12<>"",1/COUNTIF(A2:A12, A2:A12), 0))

Note: In the above formula, A2:A12 is the list of data that you want to count distinct values.

2. Then, press Ctrl + Shift + Enter keys together, you will get the following result as you need:


More relative articles:

  • Count Unique Values Based On Another Column In Excel
  • It may be common for us to count unique values in only one column, but, in this article, I will talk about how to count unique values based on another column. For example, I have the following two columns data, now, I need count the unique names in column B based on the content of column A to get the following result.
  • Count Unique Values Between Two Dates In Excel
  • Have you ever confused with counting unique values between a date range in Excel? For instance, here are two columns, column ID includes some duplicates numbers, and column Date includes date series, and now I want to count the unique values between 8/2/2016 and 8/5/2016, how can you quickly solve it in Excel?
  • Count Unique Values In Pivot Table
  • By default, when we create a pivot table based on a range of data which contains some duplicate values, all the records will be counted as well, but, sometimes, we just want to count the unique values based on one column to get the right screenshot result. In this article, I will talk about how to count the unique values in pivot table.


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