excel acos function example1

Excel ACOSH Function

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

Table of Contents


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.


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.


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)

excel acos function example1

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

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