Formulas > =ACOS()

How To Use ACOS() Function in Google Sheets


Returns the inverse cosine of a value, in radians.

Common questions about the ACOS formula:
1. What does the ACOS formula do?
2. How do you enter the formula in Google Sheets?
3. What are the parameters of the ACOS function?

How can the ACOS formula be used appropriately?
The ACOS formula can be used to return the inverse cosine of a value in Google Sheets. It takes one parameter, which is a number ranging from -1 to 1. This function will return the angle in radians, with the range of values from 0 to Pi.

How can the ACOS formula be commonly mistyped?
The ACOS formula is often mistyped as ACOS() or ACOS instead of ACOS(). Other mistypes are ACSO or ASOC.

What are some common ways the ACOS formula is used inappropriately?
Using an invalid data type as the argument for the ACOS formula is a common way the formula is used inappropriately. The argument of the ACOS formula should always be a numeric value. Additionally, entering a value outside of the range of -1 to 1 to the ACOS formula will cause an error.

What are some common pitfalls when using the ACOS formula?
When using the ACOS formula, it is important to ensure that the argument is a numerical value. It is also important to make sure that the value is within the range of -1 to 1, as entering a value outside of this range will cause an error. Additionally, it is important to note that the value returned by the formula will be in radians, so it may need to be converted to an angle in degrees for some applications.

What are common mistakes when using the ACOS Formula?
Common mistakes when using the ACOS Formula include mistyping the formula as ACOS() or ACOS, entering an argument that is not a number, and entering a number outside of the range of -1 to 1 to the ACOS formula.

What are common misconceptions people might have with the ACOS Formula?
One common misconception about the ACOS Formula is that it returns the angle in degrees. In actuality, the value returned by the ACOS Formula is in radians, and needs to be converted to degrees for some applications. Another misconception is that the value can be entered outside of the range of -1 to 1. Doing this will result in an error.

How To Actually Use ACOS() in Sheets


Looking for a video tutorial? Members can email me anytime! Check out the blogs below for more info on this formula. Or generate your formula. Find more formulas here at

Learn more about the ACOS() formula:

FACTDOUBLE FACT GAMMA in ACOS(x) Taylor Maclaurin SERIESSUM and LINEST Polynomial Regression Excel

This video shows the use of SQRTPI, ACOS, ARRAYFORMULA, SERIESSUM, LINEST, FACTDOUBLE, FACT, GAMMA, in, Taylor Series, Maclaurin Series, Polynomial Regression, of ACOS(x), Google Sheets, Excel

Generate a ACOS() formula for your needs with AI

Google Sheets Formula Generator

Whatever you need to do in sheets, you can generate a formula. Use the Better Sheets Formula generator to create a formula for any need. Completely free for members. Free to try for non-members.


Looking for more help inside sheets get the free Add-on: Asa. Ask Sheets Anything. Go ahead, ask it any problem you migth have. Bring your own APIKEY and generate formulas inside of Google Sheets.