Free Online Inverse Cosine Calculator works in degrees or radians, plus draws triangle.

Inverse tangent calculator.Enter the tangent value, select degrees (°) or radians (rad) and press the = button.

Quickly calculate the arctangent (tan inverse) of any value with our easy-to-use tan inverse calculator. Get accurate results instantly.

Calculate arctan (tan⁻¹) - find the angle whose tangent equals a given value. Results in degrees and radians.

The calculator will find the inverse tangent of the given value in radians and degrees. The inverse tangent y = tan 1 (x) y = tan−1(x) or y = atan (x) y = atan(x) or y = arctan (x) y = arctan(x) is such a …

Sep 26, 2025 · Enter any number into the inverse tan calculator. The calculator will return the inverse tangent of that number as degrees, radians, or gradians.

Omni's inverse tangent calculator is the perfect tool for this purpose: insert a number in the valid domain of the inverse tangent (that is, the whole x-axis), and you'll get the result in no time. You can also use …