Using this inverse tangent (arctan) calculator, you can quickly calculate the inverse tangent function. The result is displayed in degree and radians.

The inverse trigonometric functions are the inverse functions of trigonometric functions in mathematics. They are the inverses of the sine, cosine, tangent, cotangent, secant, and cosecant functions, respectively. They’re most commonly applied to calculate an angle from one of the angle’s trigonometric ratios.

The inverse of the tangent function is the ** arctan** function. It returns the angle with a given tangent.

For example,

If the tan of 45° is 1:

Tan(45°) = 1

Then the arctan of 1 is 45°:

arctan(1) = tan^{-1}(1) = 45°

**Arctan Calculator Use**

- This calculator is simple and quick to use.
- Simply enter the value of angle.
- Once you’ve entered the value, the calculator will show you the results in degree and radians.

**Arctan Formula**

The formula to calculate the inverse of tangent function is mentioned below: