What is volume?
is a measure of the amount of three-dimensional space occupied by an object.
The volume of a container is generally understood to be the capacity of the
container; i.e., the amount of fluid (gas or liquid) that the container
could hold, rather than the amount of space the container itself displaces.
is the volume of a cube with edge length of one kilometer (1000 m), which
is equal to
one billion cubic meters.
is a unit of volume equal to that of a cube having edges each one decimeter in
length, which is equal to
10⁻³ cubic meters