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How to calculate average of dynamic range in Excel?

For example you want to average a range which is dynamically changing based on the value in a certain cell or criteria in Excel, is there any formulas to solve it? Of course yes! Here I will introduce formulas to calculate the average of dynamic range in Excel easily.

Method 1: Calculate average of dynamic range in Excel

Select a blank cell, for example Cell C3, enter the formula =IF(C2=0,"NA",AVERAGE(A2:INDEX(A:A,C2))) into it, and then press the Enter key.


(1) In the formula of =IF(C2=0,"NA",AVERAGE(A2:INDEX(A:A,C2))), A2 is the first cell of the dynamic range in Column A, C2 is the cell with number which equals to row number of last cell of the dynamic range. And you can change them based on your needs.

(2) You can also apply the formula =AVERAGE(INDIRECT("A2:A" &C2)) to calculate the average of dynamic range based on Cell C2.

Calculate average of dynamic range based on criteria

Sometimes, the range is dynamic based on the criteria users input. In this case, you can calculate the average of dynamic range as below steps.

1. Batch define names for each row and each column in the specified range.

In our case, select the Range A1:D11, click the Create names from selection button  in the Name manager pane; check both Top row option and Left column option in the Create Names from Selection dialog box, and click the OK button. See screenshot below:

Note: The Name manager pane is one component of Navigation Pane, which is provided by Kutools for Excel and includes: (1) list all opening workbooks and sheet tabs; (2) list and insert AutoText entries; (3) list all name ranges; (4) List all column names of active sheet; (5)  Advanced find and replace. Read More  Have a no-limitation Trial

2. Select the blank cell you will place the dynamic average at, enter the formula =AVERAGE(INDIRECT(G2)) (G2 is the dynamic criteria users input, and it will be one of row headers or column headers of the specified range.) into it, and press the Enter key.

And now the average will dynamically change based on the criteria users input in the Cell G2. See screenshot above.

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Under this example, I need to calculate the average of a subset of products in a given month. For example - I need the average of Black Tea, Mint Tea, and Vodka in February. Is there an easy way to do this? All the products are consecutive so i'd like to use a range.
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