Calculate the inverse tangent of a number using this calculator. This arctan calculator converts a value to its inverse tangent. Simply enter the number you wish you calculate.

Arctan Formula

The following formula can be used to calculate the arctan of a value.

Arctan(x) = C

Tan C = X

  • Where x is a value
  • C is an angle in radians

Arctan Definition

The arctan is defined as the inverse value of the tangent of any number or value.

How to calculate arctan?

How to calculate an arctan?

  1. First, measure the angle.

    Measure or determine the angle are the value you want to take the arc tangent of.

  2. Next, take the tangent.

    Calculate the tangent of that number.

  3. Finally, take the inverse.

    Inverse the value from step to get your arctan value.


arctan formula