Excel : Count Unique values in a column

This tutorial explains how to count unique values in a column.

Sample Data
Sample Data
Formula
=SUMPRODUCT(1/COUNTIF(B3:B15,B3:B15))
Logic
The text "Jhonson" appears 3 times so the unique value would be equal to  (1/3) + (1/3) + (1/3) = 1

How Formula works

COUNTIF counts the number of times each value appears.
COUNTIF Formula Evaluation
Then all the values are divided by 1 and SUMPRODUCT sums all the fraction values.

Count Unique Values (Ignoring Blank Cells)
Data with Blank cells
Formula (Ignoring Blank cells)
=SUMPRODUCT((B3:B15<>"")/COUNTIF(B3:B15,B3:B15&""))

Related Articles
1. 3 Ways to extract unique values
2. Count Unique values in multiple columns
3. Select and Count Duplicate values in Excel
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About Author:

Deepanshu founded ListenData with a simple objective - Make analytics easy to understand and follow. He has over 10 years of experience in data science. During his tenure, he has worked with global clients in various domains like Banking, Insurance, Private Equity, Telecom and Human Resource.

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