Formulae for Volume

Cube = a ³

Rectangular prism = a b c

Irregular prism = b h

Cylinder = b h = pi r ² h

Pyramid = (1/3) b h

Cone = (1/3) b h = 1/3 pi r ² h

Sphere = (4/3) pi r ³

Note: "ab" means "a" multiplied by "b". "a²" means "a squared", which is the same as "a" times "a". "b³" means "b cubed", which is the same as "b" times "b" times "b". Oh, and be careful! Units count. Use the same units for all measurements.