Reconstitution calculator

Two numbers decide everything that follows: how much material is in the vial and how much solvent goes into it. Enter them to see the concentration, the volume that holds a given amount, and how many aliquots the vial yields.

Amount in the vial, mgAs printed on the vial or its specification.Solvent volume, mlHow much you add to the vial.Target amount, mcgOptional. Fill it in to get the volume and the count.

Concentration: 5 mg/ml
Amount in 0.1 ml: 500 mcg
Volume for the target amount: 50 µl
Aliquots per vial: 40 aliquots

Arithmetic only, and for research use. It says nothing about whether a material, a solvent or a concentration is appropriate for anything — that is decided by the specification of the material and the protocol of the work. Nothing sold here is intended for human or veterinary consumption.

How it counts

Concentration is the amount in the vial divided by the solvent volume: 10 mg in 2 ml is 5 mg/ml.
The volume for a target amount is that amount divided by the concentration, shown in millilitres and, below 1 ml, in microlitres.
Aliquots are rounded down: a vial that yields 13.6 of them yields 13, because the remainder is not a full aliquot.