If you enter your two figures for mass and volume into the calculator it will return the density. Mass can be written as m and volume can be written as V. Optionally change the unit.
Calculating Thickness A piece of aluminum foil has a mass of 0018g and is 50cm on each side.
Since the box is a cuboid the volume can be found by multiplying lengths of the three side lengths together. If you enter your two figures for mass and volume into the calculator it will return the density. Pay attention to the units of measure to ensure an appropriate result. Density D is a quantity defined as mass m per unit volume v.