Calculator
Mathematics

Triangle Solver Calculator

Solves any triangle using SSS, SAS, ASA, or AAS.

Tutorial / How it works →

Info

With the triangle solver, you can calculate all sides, angles, area, and perimeter of a triangle from your given data (3 sides, 2 sides + included angle, 2 angles + included side, or 2 angles + 1 side). Cosine and sine rules are used in every solution, and warnings are shown for invalid inputs.