Count number of unique codes in a column

rob51852

Board Regular
Joined
Jun 27, 2016
Messages
65
Hi, I have a spreadsheet which contains a list of 70,000 numeric codes in column B. Some of the codes are duplicated multiple times.

Is there a formula that will count the number of unique codes?

Thanks
 

James006

Well-known Member
Joined
Apr 4, 2009
Messages
3,680
Hi,

You can use following formula

=SUMPRODUCT(1/COUNTIF(yourRange,yourRange))

Hope this will help
 

rob51852

Board Regular
Joined
Jun 27, 2016
Messages
65
Hi,

You can use following formula

=SUMPRODUCT(1/COUNTIF(yourRange,yourRange))

Hope this will help
Hi James,

Thanks. The formula just returns a 0... Have I transposed it wrong:

=SUMPRODUCT(1/COUNTIF(D2:D61932,D2:D61932))
 

James006

Well-known Member
Joined
Apr 4, 2009
Messages
3,680
Hi,

Apparently 70'000 records is too much for Excel to swallow ...

Would suggest to Insert a Pivot Table ... much safer ...
 

rob51852

Board Regular
Joined
Jun 27, 2016
Messages
65
Hi,

Apparently 70'000 records is too much for Excel to swallow ...

Would suggest to Insert a Pivot Table ... much safer ...
Thanks. Just came back to my PC and it's done it: 2152

Thanks again
 

mumps

Well-known Member
Joined
Apr 11, 2012
Messages
8,601
Assuming you have headers in row 1, try this macro:
Code:
Sub CountUniques()
    Application.ScreenUpdating = False
    Dim LastRow As Long, rowCount As Long
    LastRow = Cells.Find("*", SearchOrder:=xlByRows, SearchDirection:=xlPrevious).Row
    Range("B1:B" & LastRow).AdvancedFilter Action:=xlFilterInPlace, CriteriaRange:=Range("B1:B" & LastRow), Unique:=True
    rowCount = [subtotal(103,B:B)] - 1
    MsgBox ("There are " & rowCount & " unique values.")
    Range("B1").AutoFilter
    Application.ScreenUpdating = True
End Sub
 

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