If (a1), (a2), (a3),.,.,.,(ai) and (a) are the aliquot portions and (v1), (v2), (v3),.,.,.,(vi) and (100) are the volumes in ml corresponding to their respective dilutions, the dilution factor D will be equal to:
Če so (a1), (a2), (a3),.,.,.,(ai) in(a) alikvotni deleži ter (v1), (v2), (v3),.,.,.,(vi) in (100) volumni v ml, ki ustrezajo njihovim razredčitvam, bo faktor redčenja D enak: