The dilution factor (or dilution ratio) is the notation used to express how much of the original stock solution is present in the total solution after dilution. It is often given as a ratio but can also be given as an exponent; however, this calculator will only show it as a ratio.
After dilution, the dilution factor (or dilution ratio) represents how much of the original stock solution remains in the entire solution. It’s usually expressed as a ratio, although it can also be expressed as an exponent.