Trigonometry Calculators
Angle and triangle tools: convert between degrees and radians, solve triangles from sides and angles using the laws of sines and cosines, and evaluate trigonometric functions on the advanced scientific calculator.
Triangle Solver
Solve a triangle from SSS, SAS, ASA/AAS or a right triangle — sides, angles, perimeter and area.
e.g. 3-4-5 triangle (SSS)StepsDecimal resultMultiple methods
Advanced Scientific Calculator
A full expression calculator with functions, memory and DEG/RAD, plus a reproducible calculation receipt.
e.g. sin(30) + 2^5StepsVerifiedLocal only
Degrees ↔ Radians
Convert degrees to radians and back, with the exact multiple of π and a reverse-conversion check.
e.g. 180° → radiansStepsExact resultDecimal result
Pythagorean Theorem
Find the hypotenuse or a missing leg of a right triangle with a² + b² = c², exact or decimal.
e.g. Hypotenuse of 3, 4StepsExact resultDecimal result