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: Conditionally Formatting Non-Integers.

Conditionally Formatting Non-Integers

by Allen Wyatt
(last updated March 29, 2014)

Makik has a list of numeric values. Some are integers; some have digits to the right of the decimal. He would like to use conditional formatting to highlight those values that have digits to the right of the decimal point.

There are a large number of ways that this can be done, and a number of different approaches. I won't go into how to define a conditional format here; such information has already been covered in other issues of ExcelTips. Instead I'll focus on the condition itself and how you should select the condition to test.

If you know that the list will only contain numeric values, then you could use any number of formulas to determine whether the value is a non-integer. These are just a few that can be used if you specify that the condition contains a formula:

  • =MOD(A1,1)>0
  • =A1<>INT(A1)
  • =A1-INT(A1)>0
  • =NOT(A1=INT(A1))
  • =(A1-TRUNC(A1))>0
  • =ABS(A1)-INT(ABS(A1))>0
  • =IF(FIND(".",A1),1,0)
  • =(A1-(ROUNDDOWN(A1,0))>0)

The various formulas (and there could be many more listed) basically check to see if the unaltered value in the cell is equal to a version that makes sure there is nothing to the right of the decimal.

If you prefer (for some reason) to not rely upon a formula to define your condition, then you can choose "cell value is greater than" and set the condition as ROUNDDOWN(A1,0). You could also use "not equal to" in the condition and you could change ROUNDDOWN to ROUNDUP. Either way, you are testing to determine whether a rounded version of the number (rounded to the nearest integer) is equal to the original value or not.

You should note that any integer value in your list is formatted with decimal places, then such a value won't be "caught" by these conditional formats. For instance, if a cell contains the value 41 but the cell is formatted to display the value as 41.00, that value won't be "marked" by the conditional format as having something to the right of the decimal point. The reason is that the value really is an integer; it is just the display that adds the decimal point and two zeros.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (8482) 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: Conditionally Formatting Non-Integers.

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

Setting Gap Spacing in the Equation Editor

The Equation Editor is a great tool that allows you to add equations to your document. You have quite a bit of control over ...

Discover More

Changing a Toolbar Button Image

Excel allows you to modify virtually all aspects of its user interface. One of the things you can change is the images used ...

Discover More

Deciphering a Coded Date

It is no secret that Excel allows you to work with dates in your worksheets. Getting your information into a format that is ...

Discover More

Professional Development Guidance! Four world-class developers offer start-to-finish guidance for building powerful, robust, and secure applications with Excel. The authors show how to consistently make the right design decisions and make the most of Excel's powerful features. Check out Professional Excel Development today!

More ExcelTips (menu)

Using Multiple Test Conditions

When creating conditional formats, you are not limited to only one condition. You can create up to three conditions, all for ...

Discover More

Changing Shading when a Column Value Changes

If you have a data table in a worksheet, and you want to shade various rows based on whatever is in the first column, then ...

Discover More

Protecting Your Conditional Formatting Rules

If you have conditional formatting applied in a worksheet, the formulas in those formats may not be as secure as you would ...

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. 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 four less than 6?

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.