📐 Geometry Calculators

Free online geometry calculators and tools. Choose a calculator below.

All Geometry Tools

Area Calculator Calculate the area of common shapes: rectangle, triangle, circle, trapezoid, and... Volume Calculator Calculate the volume of 3D shapes: cube, sphere, cylinder, cone, and rectangular... Pythagorean Theorem Calculator Calculate the hypotenuse or missing side of a right triangle using the Pythagore... Circle Calculator Calculate circle properties: area, circumference, diameter, and sector area from... Triangle Calculator Calculate triangle properties from three sides: area, perimeter, angles, and cla...