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How to count duplicate values in a column in Excel?

If you have a list of data in a worksheet with unique values and duplicate values, and you do not only want to count the frequency of duplicate values also want to know the order of the occurrence of the duplicate values. In Excel, the COUNTIF function can help you count the duplicate values.


Count the frequency of duplicates in Excel

In Excel, you can use COUNTIF function to count the duplicates.

Select a blank cell adjacent to the first data of your list, and type this formula =COUNTIF($A$2:$A$9, A2) (the range $A$2:$A$9 indicates the list of data, and A2 stands the cell you want to count the frequency, you can change them as you need), then press Enter, and drag the fill handle to fill the column you need. See screenshot:

Tip: If you want to count the duplicates in the whole Column, use this formula =COUNTIF(A:A, A2) (the Column A indicates column of data, and A2 stands the cell you want to count the frequency, you can change them as you need).

Quickly select and count all duplicate/unique values from a column in Excel

In general, we can remove duplicates from a list easily by Data > Remove Duplicates in Excel. But how to select duplicate/unique values, or count them from a column? And what if selecting or counting duplicate/unique except the first duplicate one? Try Kutools for Excel’s Select Duplicate & Unique Cells utility!
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Count the order of occurrence of duplicates in Excel

But if you want to count the order of the occurrence of the duplicates, you can use the following formula.

Select a blank cell adjacent to the first data of your list, and type this formula =COUNTIF($A$2:$A2,A2) (the range $A$2:$A2 indicates the list of data, and A2 stands the cell you want to count the order, you can change them as you need), then press Enter, and drag the fill handle to fill the column you need. See screenshot:


Count and select all duplicates in a column with Kutools for Excel

Sometimes you may want to count and select all duplicates in a specified column. You can get it done easily with Kutools for Excel’s Select Duplicates & Unique Cells utility.

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1. Select the column or list that you will count all duplicates, and click the Kutools > Select > Select Duplicates & Unique Cells.

2. In the opening Select Duplicate & Unique Cells dialog box, check the Duplicates (Except 1st one) option or All duplicates (Including 1st one) option as you need, and click the Ok button.

And then you will see a dialog box comes out and shows how many duplicates are selected, and at the same time duplicates are selected in the specified column.

Note: If you want to count all duplicates including the first one, you need to check the All duplicates (Including 1st one) option in the Select Duplicate & Unique Cells dialog box.

3. Click the OK button.

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Count occurrences of each duplicate in a column with Kutools for Excel

Kutools for Excel’s Advanced Combine Rows utility can help Excel users to batch count the occurrences of each items in a column (the Fruited Column in our case), and then delete the duplicate rows based on this column (the Fruit Column) easily as below:

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1. Select the table containing the column where you will count each duplicate, and click Kutools > Content > Advanced Combine Rows.

2. In the Advanced Combine Rows, select the column you will count each duplicate and click Primary Key, next select the column you will put counting results in and click Calculate > Count, and then click the OK button. See screenshot:

And now it has counted the occurrence of each duplicate in the specified column. See screenshot:

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Demo: count duplicate values in a column in Excel by Kutools for Excel


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Comments (56)
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This comment was minimized by the moderator on the site
easy and good one :D
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Is there any other function or way to calculate the same..?? Because countif() slows down the functioning of the sheet. Please suggest.
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More use of functions and formulas make worksheet slower. There is no method to solve it even i suggest you to use special paste option after using formulas and functions. It will solve your problem. Just use it "Alt+s+e+v". :-)
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contact me @@ if u want stop duplicacy!! * conditional formating duplicate
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Awesome, it's easy and useful. Thaks
This comment was minimized by the moderator on the site
easy and helpful in large working
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easy to use and helpful..:-p
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Impotent work if duplicate value.
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hI In sheet1 we have three columns, 1st columns "fruits names" 2nd column Date of received, Name of supplies only to supplies and in 3rd 4th 5th columns are Normal defect, Major defects and Critical defects,all these in 1st sheet. in 2nd sheet, 3rd sheet, 4th sheet, saparetly post all of Normal defects in 2nd sheet, Major defects in 3rd sheet, critical defects in 4th sheet. when we are updating these sheet it automatically should update 1st individual in normal, Major, Critical. Thanks Naveen
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i had query regarding for eg: 1st sheet of work book 1st is column is with data received fruits, 2nd column is fruits names, 3rd column is for normal defects, 4th column is for Major Defects, 5th column is for Critical defects 2nd sheet for Normal Defects, 3rd sheet for Major Defects, 4th sheet for Critical Defects, My query is when we are updating these above sheet it total count should be reflected in 1st by individual fruits and for individual defects. Regards, Naveen kumar
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I am trying to label an individual data point as "1"...and if it has a duplicate, it will label the duplicates as "0"...but it would still label at least one of the data points as "1". Example, I could have one PO number on a truck, or multiple. Thanks
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suppose there is a column which contains values as GR1, GR2, GR3 and so on..... but some also getting repeated again. how can i get the final count of the item. Like if it reaches to GR29, the the value should show as 29 in the formula cell
This comment was minimized by the moderator on the site
If you want to get a sum of duplicate values in a column(without counting the first one), try: =IF(COUNTIF($A$1:$A1,A1)-1>=1,1,0) For example, let's say that you have a same value 5 times. It will count 1 for each of the 4 duplicate values. Then, you just have to get a sum.
This comment was minimized by the moderator on the site
=COUNTIF($A$1:$A1,A1) This method for finding duplicates is amazing, because it allows you to do a simple filter on the column (just deselect 0 and 1) to show all 'duplicate entries' instead of 'entries that have duplicates'. What I mean by this, is I can then select ALL visible after the filter, and delete the entire rows, and be left with only a single entry of a row containing that item. For MANY projects, this is a fantastic way to filter things down quickly.
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Let say I have different number of PO's in column A but some numbers are the same how can I count the total number of PO without including the duplicate number?
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use formula =SUMPRODUCT(1/COUNTIF(A1:A1483, A1:A1483&"")) =1/sumproduct(1/countif(range, criteria)) :-)
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many many thanks :-)
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Please help to resolve this issue site ID Supplier Line 12 abc good 12 VV good 12 TT good site ID Supplier Line 12 abc good Required Supplier Name - formula required to show "Multiple Suppliers" as against same site iD and line there are 3 different suppliers. Please help to resolve this issue.
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Thank you SO much for this post its exactly what I needed! Please could you tell me why your formula "=COUNTIF($A$2:$A2,A2)" didn't work as expected in my worksheet until I amended it to "=COUNTIF($A2:$A$2;A2)" ? i.e. switching the absolute references around Thanks in advance
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very nice formula for counting of duplicate. It is very helpful Thanks extend office team
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I appreciate for the Solution provided. It is very helpful.
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Hi, Please help me to solve the below problem =COUNTIFS('Weld Map'!$O$6:$O$7105,"="&F2,'Weld Map'!$V$6:$V$7105,"=Rej*",'Weld Map'!$AL$6:$AL$7105,"=REJ*") I need to count the text "REJ" from columns "V" and "AL" under the criteria of a period between F1 and F2 Thanks and regards
This comment was minimized by the moderator on the site
use this instead of yours =SUM(COUNTIFS(J1:J196,"agree",A1:A196,"yes"),COUNTIFS(J1:J196,"agree",A1:A196,"no"))
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Hi, Please help me to solve the below problem =COUNTIFS('Weld Map'!$O$6:$O$7105,"="&F2,'Weld Map'!$V$6:$V$7105,"=Rej*",'Weld Map'!$AL$6:$AL$7105,"=REJ*") I need to count the text "REJ" from columns "V" and "AL" under the criteria of a period between F1 and F2
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=COUNTIF(D9:AG9,"*REJ*")
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