Geometry Calculators

Geometry Calculators

Browse geometry calculators and related tools on Calculator 360.

Circle Calculator

Calculate a circle’s dimensions and area.

Triangle Area Calculator

Calculate the area of a triangle.

Cylinder Volume Calculator

Calculate cylinder volume from radius or diameter and height, using consistent length units.

Pythagorean Theorem Calculator

Find one missing side of a right triangle from the other two sides.

Sphere Volume Calculator

Calculate sphere volume from a radius or diameter, or use the inverse volume mode.

Cube Volume Calculator

Find the volume, surface area, and diagonal of a cube or rectangular prism.

Cylinder Surface Area Calculator

Calculate the lateral and total surface area of a cylinder.

Sphere Surface Area Calculator

Calculate sphere surface area, including an inverse area mode.

Cone Volume Calculator

Find cone volume from radius or diameter and height.

Rectangle Area Calculator

Find rectangle area, perimeter, and diagonal from the measurements you know.

Square Area Calculator

Find square area, perimeter, and diagonal from one known measurement.

Choose the right calculator

Choose a shape and enter the supported measurements. Keep length units consistent.

Circle Calculator

Calculate a circle’s dimensions and area.

Triangle Area Calculator

Calculate the area of a triangle.

Cylinder Volume Calculator

Calculate cylinder volume from radius or diameter and height, using consistent length units.

Pythagorean Theorem Calculator

Find one missing side of a right triangle from the other two sides.

Sphere Volume Calculator

Calculate sphere volume from a radius or diameter, or use the inverse volume mode.

Cube Volume Calculator

Find the volume, surface area, and diagonal of a cube or rectangular prism.

Cylinder Surface Area Calculator

Calculate the lateral and total surface area of a cylinder.

Sphere Surface Area Calculator

Calculate sphere surface area, including an inverse area mode.

Cone Volume Calculator

Find cone volume from radius or diameter and height.

Rectangle Area Calculator

Find rectangle area, perimeter, and diagonal from the measurements you know.

Square Area Calculator

Find square area, perimeter, and diagonal from one known measurement.

Frequently asked questions

Which shapes are available?

The listed tools cover circles, triangles, cylinders, spheres, cones, cubes, rectangles, and squares.

Which units should I use?

Choose one length unit and enter all lengths consistently. Areas are shown in square units.

Does the triangle tool calculate every property?

No. It calculates triangle area using the available methods.