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How to sum or average unique values only in Excel?

In a worksheet, there is a list of numbers which have some duplicate values, and now, you just want to sum or average the unique values only. Do you have any good methods to finish this job in Excel?

Sum only unique values in Excel with formulas

Average only unique values in Excel with formulas

Sum / Average only unique values in Excel with Kutools for Excel

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arrow blue right bubbleSum only unique values in Excel with formulas


To only add the unique numbers together, you can use these formulas:

1. Type this formula: =SUMPRODUCT(1/COUNTIF(A2:A15,A2:A15&""),A2:A15) into a blank cell, see screenshot:

doc-sum-unique-1

2. Then press Enter key, and the numbers which appear only one time have been added up.

doc-sum-unique-1

Notes:

1. Here is another formula also can help you: =SUM(IF(FREQUENCY(IF(A2:A15<>"",MATCH(A2:A15,A2:A15,0)),ROW(A2:A15)-ROW(A2)+1),A2:A15)), remember to press Ctrl + Shift + Enter keys.

2. In the above formula, A2:A15 is the data range that you want to apply the calculation, you can change the arguments as you need.

3. The unique values including the first duplicate.


arrow blue right bubbleAverage only unique values in Excel with formulas

If you want to calculate the average of the unique values only, please use the following formulas:

1. Enter one of the following formulas:

  • (1.) =AVERAGE(IF(FREQUENCY(A2:A15,A2:A15),A2:A15))
  • (2.) =SUMPRODUCT((A2:A15)/COUNTIF(A2:A15,A2:A15))/SUM(IF( FREQUENCY(A2:A15,A2:A15),1))
  • 2. And then press Ctrl + Shift + Enter keys, and you will get the result of the calculation.

    Tip: The unique values including the first duplicate.


    arrow blue right bubbleSum / Average only unique values in Excel with Kutools for Excel

    Sometimes, you may mess up by the above long formulas, and just want to view the calculated result. In this case, Kutools for Excel’s Select Duplicate & Unique cells function can help you select all the unique values first and the calculation result are displayed at the status bar as well.

    Kutools for Excel includes more than 300 handy Excel tools. Free to try with no limitation in 30 days. Get it Now.

    After installing Kutools for Excel, please do as following steps:

    1. Select your data range that you want to do some calculation.

    2. Click Kutools > Select Tools > Select Duplicate & Unique Cells, see screenshot:

    doc-sum-unique-1

    3. Then in the Select Duplicate & Unique Cells dialog box, choose Unique values only or All unique (Including 1st duplicates) option as you need. See screenshot:

    doc-sum-unique-1

    4. Then click OK to select all the unique numbers, at the same time the result of the calculations are displayed in the status bar. See screenshot:

    doc-sum-unique-1

    Tip: If you want to sum or average the unique values which not including first duplicate, you can check Unique Values only in the Select Duplicate & Unique Cells dialog box.

    To know more about this Select Duplicate & Unique cells feature.


    Related articles:

    How to average absolute values in Excel?

    How to average cells ignoring error values in Excel?

    How to average only positive or negative numbers in Excel?


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