ISNA Excel Function

This Excel Tutorial demonstrates how to use the Excel ISNA Function in Excel to test if a cell results in #N/A, with formula examples.

ISNA Function Description:

The ISNA Function Test if cell value is #N/A. Returns TRUE or FALSE.

Formula Examples:

isna function examples

Example Formula Result
#N/A =ISNA(C5) True
Other Error =ISNA(C6) False
Text =ISNA(C7) False
Number =ISNA(C8) False

Syntax and Arguments:

The Syntax for the ISNA Formula is:

Function Arguments ( Inputs ):

value – The test value

Additional Notes

Enter the cell reference.

To test a cell for any error, use ISERROR. To test a cell for any error, except #N/A, use ISERR.

ISNA Examples in VBA

You can also use the ISNA function in VBA. Type:
For the function arguments (value, etc.), you can either enter them directly into the function, or define variables to use instead.

Return to the List of all Functions in Excel

How to use the ISNA Function in Excel:

To use the AND Excel Worksheet Function, type the following into a cell:
After entering it in the cell, notice how the AND formula inputs appear below the cell:
isna formula syntax
You will need to enter these inputs into the function. The function inputs are covered in more detail in the next section. However, if you ever need more help with the function, after typing “=ISNA(” into a cell, without leaving the cell, use the shortcut CTRL + A (A for Arguments) to open the “Insert Function Dialog Box” for detailed instructions:
how to use the isna function in excel

For more information about the ISNA Formula visit the
Microsoft Website.

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