Arccos Calculator

Calculate the arccosine (inverse cosine) based on the input data.

Arccosine function is the inverse function of cosine. It is commonly used in trigonometry and geometry.

How to use the Arccos Calculator?

  1. Enter the value of the cosine that you want to find the angle for in the "Arccosine" field.
  2. Click on the "Calculate" button.
  3. Check the angle in degrees and radians in their respective fields.


Arccos ° rad
1 0
0.5 60° π/3
0 90° π/2
-0.5 120° 2π/3
-1 180° π

See Also: