Understanding the POWER Function

Written by Allen Wyatt (last updated October 19, 2024)
This tip applies to Excel 2007, 2010, 2013, 2016, 2019, 2021, and Excel in Microsoft 365


Bailey noticed that Excel has a function called POWER to raise values to a desired power. She has always used the exponentiation operator (the carat) for this purpose, so she wonders if there is anything that the POWER function does that she cannot do with exponentiation.

Excel often provides different ways to the same task. This seems to be one of those instances, as there is no difference that we could find between using POWER and the exponentiation operator. For instance, both of the following produce an identical result:

=POWER(5,7)
=5^7

In both notations, the first number (5) is raised to the second number (7), meaning that 5 is multiplied by itself 7 times. It is essentially a much shorter version of this:

=5*5*5*5*5*5*5

For my usage, I prefer using the exponentiation operator instead of the POWER function; it just "feels right" to me. There is one instance in which you may find using POWER a bit clearer, however, and that is when you are raising a number to a fractional value. Both of the following are equivalent:

=POWER(27,1/3)
=27^(1/3)

If you forget to use the parentheses with the exponentiation operator—which I find easy to do—you won't get the answer you expect. So, in this case, it may be clearer to use POWER.

The bottom line is that you can use whichever notation seems easiest to you, as both do the same thing.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (10046) applies to Microsoft Excel 2007, 2010, 2013, 2016, 2019, 2021, and Excel in Microsoft 365.

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

Numbers to Text, Take Three (Over a Million)

So, you need to convert a number to text that is over one million? Here is a VBA macro that will convert up to 999,999,999.

Discover More

Counting Dates in a Range

Excel makes working with a list of dates relatively easy. If you have a list of dates, you may need to know how many of ...

Discover More

Seeing What Changed in a PivotTable

PivotTables are great for aggregating and analyzing tons of raw data. If you want to see what changes in the PivotTable ...

Discover More

Program Successfully in Excel! This guide will provide you with all the information you need to automate any task in Excel and save time and effort. Learn how to extend Excel's functionality with VBA to create solutions not possible with the standard features. Includes latest information for Excel 2024 and Microsoft 365. Check out Mastering Excel VBA Programming today!

More ExcelTips (ribbon)

Limiting the Number of Results from a Function

Some of the newer functions in Excel can return quite a bit of information. If you want to limit what is returned, then ...

Discover More

Median of Selected Numbers

Need to find a median value in a series of values? It's easy with the MEDIAN function. What isn't as easy is to derive ...

Discover More

Using the IF Worksheet Function

Programmers know that a staple of any language is the ability to create conditional statements. Excel understands this, ...

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}] (all 7 characters, in the sequence shown) 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 eight minus 5?

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 ribbon interface (Excel 2007 or later)? This site is for you! If you use an earlier version of Excel, visit our ExcelTips site focusing on the menu 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.