Inverse Cosine Calculator

There are 2 different ways that you can enter input into our arc cos calculator

There are 2 different ways that you can enter input into our arc cos calculator

Method 1: Decimal

Enter a decimal between -1 and 1 inclusive

Method 2: Adjacent/Hypotenuse

Entering the ratio of the adjacent side divided by the hypotenuse. (review inverse cosine here )



Ultimate Math Solver (Free)

Free Algebra Solver ... type anything in there!