Learn how to count the number of unique and distinct values in a column based on data in another column using array in Microsof Excel.

If you are unfamiliar with inputting formulas into Microsoft Excel, the much simpler way to get the number of unique values in an Excel column is through a filter.

The UNIQUE function in Excel 365 is designed to extract distinct values from a given range of data.

Specifying the conditional count of a value sounds like a daunting task, but two Excel functions make quick work of this challenge.

Creating a list of duplicate values that’s separate from the data source is easier than ever thanks to Microsoft Excel's FILTER() function.

If you wish to count the same or duplicate values in a column only once in Excel or the count of occurances of duplicate values, read this article.