The volume of a cube or rectangular bin would be h x w x d (a bin 3 feet on a side would hold 3 x 3 x 3 cubic feet, or 27 cu. ft.

The volume of a cylinder is 3.14159265...heck, just us 3.14 x the radius squared x the height. So a cylinder 2 feet high and 1 foot in radius would 3.14 x 1 (1 squared is still 1) x 2, or 6.28 cubic feet.

You can work out anything else with these formulae.