# Arccos Calculator

Arccos(x) calculator. Inverse cosine calculator.

Cosine calculator ►

## Arccos definition

The arccosine function is the inverse function of cos(x).

arccos(x) = cos-1(x)

For example, If the cosine of 60° is 0.5:

cos(60°) = 0.5

Then the arccos of 0.5 is 60°:

arccos(0.5) = cos-1(0.5) = 60°

## Arccos table

x arccos(x)
-1 180° π
-0.8660254 150° 5π/6
-0.7071068 135° 3π/4
-0.5 120° 2π/3
0 90° π/2
0.5 60° π/3
0.7071068 45° π/4
0.8660254 30° π/6
1 0

## Features of Arccos Calculator

Our Arccos Calculator allows the users to Calculate Arccos. Some of the prominent features of this utility are explained below.

#### No Registration

You don’t need to go through any registration process to use the Arccos Calculator. Using this utility, users to Calculate Arccos as many times as you want for free.

#### Fast conversion

This Arccos Calculator offers users the fastest Calculate. Once the user enters the  Arccos values ​​in the input field and clicks the Calculate button, the utility will start the conversion process and return the results immediately.

#### Saves Time and Effort

The manual procedure of Calculator Arccos isn’t an easy task. You must spend a lot of time and effort to complete this task. The Arccos Calculator allows you to complete the same task immediately. You will not be asked to follow manual procedures, as its automated algorithms will do the work for you.

##### Accuracy

Despite investing time and effort in manual Calculation, you might not be able to get your hands on accurate results. Not everyone is good at solving math problems, even if you think you're a pro, there's still a good chance you'll get in accurate results. This situation can be smartly handled with the help of a Arccos Calculator. You will be provided with 100% accurate results by this online tool.

##### Compatibility

The online Arccos converter perfectly works on all operating systems. Whether you have a Mac, iOS, Android, Windows, or Linux device, you can easily use this online Tool without facing any hassle.

###### 100% Free

You don't need to go through any registration process to use this Arccos Calculator. You can use this utility for free and do unlimited Arccos Calculate without any limitations.