Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Weighted Averages in a PivotTable.

Weighted Averages in a PivotTable

by Allen Wyatt
(last updated July 7, 2018)

A good example of how to use calculated fields is for summarizing data differently than you can normally summarize it with a PivotTable. When you create a PivotTable, you can use several different functions to summarize the data that is displayed. For instance, you can create an average of data in a particular field. What if you want to create a weighted average, however? Excel doesn't provide a function that automatically allows you to do this.

When you have special needs for summations—like weighted averages—the easiest way to achieve your goal is to add an additional column in the source data as an intermediate calculation, and then add a calculated field to the actual PivotTable.

For example, you could add a "WeightedValue" column to your source data. The formula in the column should multiply the weight times the value to be weighted. This means that if your weight is in column C and your value to be weighted is in column D, your formula in the WeightedValue column would simply be like =C2*D2. This formula will be copied down the entire column for all the rows of the data.

You are now ready to create your PivotTable, which you should do as normal with one exception: you need to create a Calculated Field. Follow these steps:

  1. Click the down arrow next to the word PivotTable at the left side of the PivotTable toolbar. Excel displays a menu.
  2. Choose Formulas | Calculated Fields. Excel displays the Insert Calculated Field dialog box. (See Figure 1.)
  3. Figure 1. The Insert Calculated Field dialog box.

  4. In the Name box, enter a name for your new field.
  5. In the Formula box, enter the formula you want used for your weighted average, such as =WeightedValue/Weight. (You use field names in the formula; you can select them from the field list at the bottom of the Insert Calculated Field dialog box.)
  6. Click OK.

Your calculated field is now inserted, and you can use the regular summation functions to display a sum of the calculated field; this is your weighted average.

Since there are many different ways that weighted averages can be calculated, it should go without saying that you can modify the formulas and steps presented here to reflect exactly what you need done with your data.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2900) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Weighted Averages in a PivotTable.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Determining If a Number is Odd or Even

Need to know if a number in a macro is odd or even? It's easy to figure out with the simple calculation shown in this tip.

Discover More

Accepting Only Formatting Changes

When you use Track Changes in a document, Word marks everything that changes. (Makes sense, huh?) If an editor makes a ...

Discover More

Translating Documents

Need some help getting your document translated into a different language? Docs has a built-in translation tool that can ...

Discover More

Comprehensive VBA Guide Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out Mastering VBA for Office 2010 today!

More ExcelTips (menu)

Missing PivotTable Data

Wonder what happened to the data behind a PivotTable? It could be in a number of places, and tracking it down could be a ...

Discover More

Suppressing Zero Values in PivotTables

PivotTables are great for digesting and analyzing huge amounts of data. But what if you want part of that data excluded, ...

Discover More

Refreshing PivotTable Data

If you modify the data on which a PivotTable is based, you'll need to refresh the table so it reflects the modified data. ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 2 + 4?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.