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** Please Note:** This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later),

Sometimes you need to know the number of unique values in a range of cells. For instance, suppose that an instructor was teaching the following classes:

104-120 104-101 104-119 104-120

In this case there are three unique values. There is no intuitive worksheet function that will return a count of unique values, which makes one think that a user-defined function would be the logical approach. However, you can use an array formula to very easily derive the desired information. Follow these steps:

- Define a name that represents the range that contains your list. (This example assumes the name you define is MyRange.)
- In the cell where you want the number of unique values to appear type the following formula, but don't press
**Enter**yet: - Instead of pressing
**Enter**, press**Ctrl+Shift+Enter**. This informs Excel that you are entering an array formula. The formula shown in the formula bar should now appear as follows (notice the addition of the surrounding braces, indicative of array formulas):

=SUM(1/COUNTIF(MyRange,MyRange))

{=SUM(1/COUNTIF(MyRange,MyRange))}

That's it! The cell now contains the number of unique name values in the specified range. This approach is not case-sensitive, so if you have two values that differ only in their capitalization (ThisName vs. THISNAME), they are both counted as a single unique value. In addition, there can be no blank cells in the range. (Having a blank cell returns a #DIV/0 error from the formula.)

If your particular needs require that your list contain blanks (but you don't want them counted) and you want the evaluation to be case-sensitive, then you must turn to a macro. The following macro, CountUnique, will do the trick:

Function CountUnique(ByVal MyRange As Range) As Integer Dim Cell As Range Dim J As Integer Dim iNumCells As Integer Dim iUVals As Integer Dim sUCells() As String iNumCells = MyRange.Count ReDim sUCells(iNumCells) As String iUVals = 0 For Each Cell In MyRange If Cell.Text > "" Then For J = 1 To iUVals If sUCells(J) = Cell.Text Then Exit For End If Next J If J > iUVals Then iUVals = iUVals + 1 sUCells(iUVals) = Cell.Text End If End If Next Cell CountUnique = iUVals End Function

Simply put an equation similar to the following in a cell:

=CountUnique(MyRange)

The value returned is the number of unique values, not counting blanks, in the range.

*ExcelTips* is your source for cost-effective Microsoft Excel training. This tip (2337) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Counting Unique Values.

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@Scott Renz.

I strictly DON'T recommend to use helper columns where they are not needed (in fact they are not needed in 99.99% of the situations).

Have you tried my suggestion ?

--------------------------

Michael (Micky) Avidan

“Microsoft® Answers" - Wiki author & Forums Moderator

“Microsoft®” MVP – Excel (2009-2016)

ISRAEL

I strictly DON'T recommend to use helper columns where they are not needed (in fact they are not needed in 99.99% of the situations).

Have you tried my suggestion ?

--------------------------

Michael (Micky) Avidan

“Microsoft® Answers" - Wiki author & Forums Moderator

“Microsoft®” MVP – Excel (2009-2016)

ISRAEL

Hi Micky

I think that if I did not want it to count the blank one I would make the bottom one be:

=COUNTIFS(H2:H95,0,G2:G95,"<>")

I think that if I did not want it to count the blank one I would make the bottom one be:

=COUNTIFS(H2:H95,0,G2:G95,"<>")

@Scott Renz,

Take a look at the linked picture which demonstrates a Unique count WITHOUT referring to blank cells:

http://screenpresso.com/=sOlEc

--------------------------

Michael (Micky) Avidan

“Microsoft® Answers" - Wiki author & Forums Moderator

“Microsoft®” MVP – Excel (2009-2016)

ISRAEL

Take a look at the linked picture which demonstrates a Unique count WITHOUT referring to blank cells:

http://screenpresso.com/=sOlEc

--------------------------

Michael (Micky) Avidan

“Microsoft® Answers" - Wiki author & Forums Moderator

“Microsoft®” MVP – Excel (2009-2016)

ISRAEL

I have values in the range G2 to G95 that I want to count unique values.

In cell H2 I have placed the formula:

=SUMPRODUCT(--($G$1:G1=G2))

And drag copied it down to all the cells in the H column through H95.

Then in H96 I place the formula below to show the count of unique cells and have no problem with blank cells.

It counts blank for 1 unique value if there is at least one blank and adds it to the total.

=COUNTIF(H2:H95,0)

In cell H2 I have placed the formula:

=SUMPRODUCT(--($G$1:G1=G2))

And drag copied it down to all the cells in the H column through H95.

Then in H96 I place the formula below to show the count of unique cells and have no problem with blank cells.

It counts blank for 1 unique value if there is at least one blank and adds it to the total.

=COUNTIF(H2:H95,0)

Another approach, is to extract unique values, to a near by empty column, using advanced filtering and counting the extracted records. This will give you the desired count and allows to visualize the unique values.

An interesting plus, is that you can sort the extracted values to your needs

A simple macro allows to automate the process

An interesting plus, is that you can sort the extracted values to your needs

A simple macro allows to automate the process