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.

Duplicates aren't bad, but you may need to know how many times a value is repeated or how many unique values are in a data range. Here's how to tackle these tasks in Excel.

When counting unique values in Microsoft Excel, use UNIQUE() as a helper function and avoid more complicated expressions.

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

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.