Geometry Calculators

Area, perimeter, and volume for common 2D and 3D shapes, with the formula shown for each.

Area & Perimeter Calculator

Calculate the area and perimeter of common 2D shapes — rectangle, square, circle, and triangle.

Find the hypotenuse of a right triangle from its two legs, or find a missing leg from the hypotenuse and the other leg.

Calculate the volume of common 3D shapes — cube, rectangular box, cylinder, sphere, and cone.