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Geometry Calculator

Calculate area and perimeter

Formulas

Circle: Area = πr², Perimeter = 2πr
Rectangle: Area = length × width, Perimeter = 2(length + width)
Triangle: Area = ½ × base × height, Perimeter = sum of all sides

Solve Geometry Problems Instantly

The Geometry Calculator solves area, perimeter, volume, and surface area problems for common shapes including circles, triangles, rectangles, spheres, cylinders, and cones. Enter your known dimensions and get instant results with step-by-step formulas.

This tool is designed for students studying geometry, engineers planning projects, and anyone who needs quick spatial calculations. It shows the formulas used and walks you through each step of the calculation.

Beyond basic shapes, the calculator handles composite figures, irregular polygons, and 3D solid geometry. It supports both metric and imperial units with instant conversion between them.

Frequently Asked Questions

What shapes does this calculator support?

It supports circles, triangles, rectangles, squares, trapezoids, parallelograms, spheres, cylinders, cones, and more.

Can it show step-by-step solutions?

Yes, every calculation shows the formula used and a step-by-step breakdown of how the answer was derived.