This post will guide you how to use Excel ACOSH function with syntax and examples in Microsoft excel.

Table of Contents

**Description**

The Excel ACOSH function returns the inverse hyperbolic cosine of a number.

The ACOSH function is a build-in function in Microsoft Excel and it is categorized as a Math and Trigonometry Function.

The ACOSH function is available in Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000, Excel 2011 for Mac.

**Syntax**

The syntax of the ACOSH function is as below:

**= ACOSH (number)**

**Where** the ACOSH function argument is:

**Number – **This is a required argument. Any real number greater than or equal to 1.

**Example**

The below example will show you how to use Excel ACOSH function to return the inverse hyperbolic cosine of the B1 cell.

**#1 =ACOSH(B1)**

**Note:** the above formula will return the arccosine value of B1 cell.

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