Math Calculator
Professional mathematical conversions and calculations. Convert fractions, decimals, number systems, and perform geometric calculations with step-by-step solutions.
Solves all six trigonometric functions (sin, cos, tan, csc, sec, cot) and their inverses (arcsin, arccos, arctan) for any angle in degrees or radians.
The unit circle — a circle of radius 1 centred at the origin — is the foundation of all trigonometry. Every trig function value for any angle is just a coordinate on this circle.
arcsin and arccos only return angles in limited ranges (arcsin: −90° to 90°; arccos: 0° to 180°). For angles in other quadrants, the calculator may not give the answer you expect.