Dilution factor is the ratio of the solute to solvent or simply the ratio of the volume of the initial solution to the volume of the final solution.

**Formula to calculate dilution factor.**

**Example:**

Suppose you diluted 2 liters of juice with 3 liters of water, calculate the dilution factor.

Therefore, the final volume will be;

**= 2 + 3**

**= 5**

This means that, for every 2.5 unit of water there is 1 unit of juice. It can also be written as 1 : 2.5