Triangle Math Calculator

This free triangle calculator helps you calculate the area, perimeter, angles, height, and classification of any triangle. Whether you’re a student, teacher, engineer, or preparing for competitive exams, this tool provides accurate results with step-by-step explanations.

Our calculator supports three input methods:

• Three Sides (SSS): Enter all three side lengths to calculate all properties of the triangle
• Base and Height: Calculate area quickly with base and height values
• Two Sides and Included Angle (SAS): Enter two sides and the angle between them to compute the triangle’s properties

The calculator uses mathematical formulas like Heron’s formula for area from three sides, the Law of Cosines to find unknown sides, and the Law of Sines to calculate angles. It also classifies triangles as equilateral, isosceles, scalene, or right-angled based on the input values.

This tool is mobile-friendly, works offline, and is optimized for search terms like “triangle calculator”, “triangle area calculator”, and “calculate triangle angles”.