### ISNA Excel Function

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In this Article

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:

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:

1 |
=ISNA(VALUE) |

### 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:

`application.worksheetfunction.isna(value)`

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:

`=AND(`

After entering it in the cell, notice how the AND formula inputs appear below the cell:

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 **A**rguments) to open the “Insert Function Dialog Box” for detailed instructions:

For more information about the ISNA Formula visit the

Microsoft Website.