# What is the formula for calculating density and what does each letter stand for in the formula?

Sep 21, 2016

$D = \frac{M}{V}$ D = Density M = Mass V = Volume

#### Explanation:

Density is defined as the ratio of Mass to Volume.

Water for example has a defined value of 1 gram/ l ml (or $c {m}^{3}$)
or a density of 1

$D \times V$ = M : $\frac{g}{m l} \times m l = g$ ( or mass)

$\frac{M}{D} = V$ : $\frac{g}{1} / \frac{g}{m l}$ = ml (volume)

To make this more clear multiply both g/1 and g/ml times
the reciprocal of g/ml which is mi/g

 g/1 xx( ml) / g / (g)/(ml) xx (ml)/g)  = ml

The first term on the top reduces to just ml
The second term on the bottom reduces to 1
leaving ml or Volume as the answer.