Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.
Volume Formula:
Volume = l × w × h , where l is length, w is width and h is height. Volume = 4/3 πr³ , where r is the radius.
In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height, which is 3x1x2, which equals six.
Volume is often quantified numerically using the SI derived unit, the cubic metre. For example, the volume inside a sphere (that is the volume of a ball) is derived to be V = 4/3πr3, where r is the radius of the sphere. As another example, volume of a cube is equal to side times side times side.