The Excel ISLOGICAL function is a simple tool that checks whether a given cell or value contains a logical (Boolean) value. It returns TRUE if the content is a logical value and FALSE if it’s not.

## Syntax

**ISLOGICAL(value)**

## Arguments

value | The value or cell reference you want to check for logical content. |

## How to use

To use the ISLOGICAL function, follow these steps:

1. Start with a blank cell where you want the result to appear.

2. In the cell, enter the formula **=ISLOGICAL(value)**, replacing “value” with the cell or value you want to check.

3. Press Enter to see the result.

Here are a few examples:

**Example 1:** Let’s say cell A1 contains the value TRUE. In another cell, you can enter **=ISLOGICAL(A1)**, and it will return TRUE because A1 contains a logical value.

**Example 2:** If you have cell B1 with the text “Hello,” using **=ISLOGICAL(B1)** will return FALSE since “Hello” is not a logical value.

Remember, the ISLOGICAL function is handy when you need to quickly check whether a cell contains a logical value without any complex operations.

## Additional Information

Logical values in Excel are usually TRUE or FALSE and are commonly used in functions like IF statements and logical tests. The ISLOGICAL function helps ensure that the content you’re working with is in the correct format for these operations. If you’re unsure whether a value is logical, ISLOGICAL can give you a straightforward answer.