Choose a 3D shape and enter its dimensions to calculate the volume.

How to Use the Volume Calculator

Same shape-first pattern as the Surface Area calculator — pick the shape, then fill in only the dimensions that shape actually needs.

Cube:      side³
Box:       length × width × height
Sphere:    (4/3) × π × radius³
Cylinder:  π × radius² × height
Cone:      (1/3) × π × radius² × height

Worth knowing even if you never derive it yourself: a cone always holds exactly one-third the volume of a cylinder sharing its base and height — not approximately, exactly, for any radius or height you pick. Same 1/3 relationship holds between a pyramid and its matching prism, for the identical underlying reason (both shapes taper to a point or edge).

This Volume Calculator covers cube, box, sphere, cylinder, and cone. Notice every formula uses a cubed or triple-multiplied dimension — volume is inherently three-dimensional, so doubling a sphere's radius doesn't double its volume, it multiplies it by 2³, or 8. That cubic scaling isn't unique to spheres; it's true of volume generally.