# ISNUMBER Formula in Excel

What does it do? Checks if the cell value is numeric or not Formula breakdown: =ISNUMBER(value)... read more

## Overview

What does it do?

Checks if the cell value is numeric or not

Formula breakdown:

=ISNUMBER(value)

What it means:

=ISNUMBER(value to be checked if it is a number or not)

Have a bunch of values and you need to check which ones are numbers? TheĀ ISNUMBER Formula in Excel is perfect for this!

There are a couple of interesting points to take note of theĀ ISNUMBER Formula:

• Dates are also treated as numerical values, so theĀ ISNUMBER FormulaĀ will return TRUE
• If the number is stored as text, then theĀ ISNUMBER FormulaĀ will return FALSE

I explain how you can do this below:

STEP 1: We need to enter the ISNUMBERĀ function in a blank cell:

## =ISNUMBER(

STEP 2:Ā The ISNUMBERĀ arguments:

## value

What is the value to be checked?

Select the cell containing the value you want to be checked if it is a number:

## =ISNUMBER(C9)

Apply the same formula to the rest of the cells by dragging the lower right corner downwards.

You can now see which ones are the numbers!

How to Use the ISNUMBER Formula in Excel

##### Bryan

Bryan Hong is an IT Software Developer for more than 10 years and has the following certifications: Microsoft Certified Professional Developer (MCPD): Web Developer, Microsoft Certified Technology Specialist (MCTS): Windows Applications, Microsoft Certified Systems Engineer (MCSE) and Microsoft Certified Systems Administrator (MCSA).

He is also an Amazon #1 bestselling author of 4 Microsoft Excel books and a teacher of Microsoft Excel & Office at the MyExecelOnline Academy Online Course.