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.

Excel’s UNIQUE function allows users to extract unique values from a dataset, making it easier to identify and remove duplicates.

Combining UNIQUE with COUNTA allows you to count the number of unique entries in a dataset. Dynamic array formulas in Excel 365 enhance the flexibility and efficiency of the UNIQUE function.

Figure B How to use the UNIQUE () function in Excel If you’re using Microsoft 365 or one of the 2019 standalone versions of Excel, you can quickly create a dynamic list using the UNIQUE () function.

Click the "Count" option to place a checkmark next to it. Click one of the column headers in the document that has values. The word "Count" appears in the status bar's bottom right corner.

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.