# ISLOGICAL

The ISLOGICAL function in Excel is used to check if a value is a logical value (TRUE or FALSE). It returns TRUE if the value is a logical value and FALSE if it is not.

## Syntax

=ISLOGICAL(`value`

)

`value` | The value you want to check if it is logical (TRUE or FALSE). |

## About ISLOGICAL

When you need to verify whether a specific value in Excel represents a logical TRUE or FALSE, the ISLOGICAL function comes in handy. Its primary purpose is to examine a given input and determine if it qualifies as a logical value according to Excel's conventions. By employing ISLOGICAL, you can swiftly ascertain if a cell contains a logical TRUE/FALSE content, facilitating data validation and manipulations in spreadsheets effortlessly.

## Examples

If you have a cell with the value TRUE, you can check if it is a logical value using the ISLOGICAL function. For instance, if the value is in cell A1, the formula would be: =ISLOGICAL(A1)

Similarly, you can verify if a cell contains a logical value like FALSE by applying the ISLOGICAL function. For instance, if the value is in cell B5, the formula would be: =ISLOGICAL(B5)

## Questions

**What does the ISLOGICAL function return if the value provided is TRUE?**

The ISLOGICAL function will return TRUE if the value provided to it is the logical value TRUE.

**What does the ISLOGICAL function return if the value provided is not TRUE or FALSE?**

If the value provided to the ISLOGICAL function is not TRUE or FALSE, it will return FALSE.

**Can the ISLOGICAL function be used with text values?**

No, the ISLOGICAL function is designed to specifically check for logical TRUE or FALSE values. It will not return TRUE for text values, even if they resemble 'TRUE' or 'FALSE'.

## Related functions

ISNUMBER

ISTEXT

ISBLANK

ISERROR

ISNA

ISNONTEXT