Use one consistent unit system. The result will be in squared or cubed versions of that unit.

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Geometry Calculators

Area, perimeter, volume, surface area, Pythagorean theorem, triangle, circle, cylinder, cone, and sphere calculators.

8 free tools available

⭐ Top Picks in Geometry

Calculate circle area, circumference, and diameter from radius.…

Calculate circle area, circumference, and diameter from radius....

Calculate cone volume from radius and height....

Calculate cylinder volume and surface area....

Calculate the hypotenuse of a right triangle....

Calculate rectangle area, perimeter, and diagonal....

Calculate sphere volume and surface area from radius....

Calculate rectangular prism surface area and volume....

Calculate triangle area from base and height....

Geometry calculators for school, design, construction, engineering, and everyday measurement problems.

Solve common 2D and 3D geometry problems with visible formulas and unit-friendly inputs.