Please Note: This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, and 2016. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: Checking for a Value in a Cell.

Checking for a Value in a Cell

by Allen Wyatt
(last updated October 31, 2015)

If you need to base a calculation on whether a cell has a number in it or not, you can use the ISNUMBER worksheet function. This function returns True if the target cell contains a numeric value or False if it contains anything else. For instance, if you want to do a calculation based on whether cell A3 contains a number, you could use the following:

=IF(ISNUMBER(A3),(A3*12)/52,"Enter number in cell A3")

This example results in the cell containing the result of (A3 * 12) / 52, but only if A3 contains a number. If it does not (for instance, it is blank or contains text), then the result contains the text "Enter number in cell A3."

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (11857) applies to Microsoft Excel 2007, 2010, 2013, and 2016. You can find a version of this tip for the older menu interface of Excel here: Checking for a Value in a Cell.

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. ...

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