Say you have a concrete cube, volume is Length x Breadth x Height please see image below; as earlier stated, metre is the unit of measurement.
Volume= Length (1m) x Breadth (1m) x height (1m) = 1m3
Hence the volume of the above concrete cube is 1m3
. Calculations/ Formulas for volume differ from shape to shape.
Volume of a cylinder = πr2
Volume of a Cone/pyramid = 1/3 πr2