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

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.

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.

The COUNTIF () function counts the number of cells in range that satisfy criteria. Now, we don’t want a count, but we know that a unique value will return the value 1. Let’s try that now: ...