How to calculate weighted average in Excel?
For example, you have a shopping list with prices, weights, and amounts. You can easily calculate average price with the AVERAGE function in Excel. But what if weighted average price? In this article, I will introduce a method to calculate the weighted average, as well as a method to calculate weighted average if meeting specific criteria in Excel.
Calculate weighted average in Excel
Calculate weighted average if meeting given criteria in Excel
Easily batch average/sum/count columns if meeting criteria in another column
Kutools for Excel prides an powerful utility of Advanced Combine Rows which can help you quickly combine rows with criteria in one column, and average/sum/count/max/min/product other columns at the same time.
Calculate weighted average in Excel
Supposing your shopping list is as below screenshot shown. You can easily calculate the weighted average price with combining the SUMPRODUCT function and SUM function in Excel, and you can get it done as follows:
Step 1: Select a blank cell, says Cell F2, enter the formula =SUMPRODUCT(C2:C18,D2:D18)/SUM(C2:C18) into it, and press the Enter key.
Note: In the formula =SUMPRODUCT(C2:C18,D2:D18)/SUM(C2:C18), C2:C18 is the Weight column, D2:D18 is the Price column, and you can change both based on your needs.
Step 2: The weighted average price may include too many decimal places. To change the decimal places, you can select the cell, and then click the Increase Decimal button 
or Decrease Decimal button 
on the Home tab.
Calculate weighted average if meeting given criteria in Excel
The formula we introduced above will calculate the weighted average price of all fruits. But sometimes you may want to calculate the weighted average if meeting given criteria, such as the weighted average price of Apple, and you can try this way.
Step 1: Select a blank cell, for example Cell F8, enter the formula =SUMPRODUCT((B2:B18="Apple")*C2:C18*D2:D18)/SUMIF(B2:B18,"Apple",C2:C18) into it, and press the Enter key.
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Note: In the formula of =SUMPRODUCT((B2:B18="Apple")*C2:C18*D2:D18)/SUMIF(B2:B18,"Apple",C2:C18), B2:B18 is the Fruit column, C2:C18 is the Weight column, D2:D18 is the Price column, "Apple" is the specific criteria you want to calculate weighted average by, and you can change them based on your needs.
Step 2: Select the cell with this formula, and then click the Increase Decimal button or Decrease Decimal button on the Home tab to change the decimal places of weighted average price of apple.
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