Laboratory tool

Reconstitution calculator

Work out the concentration of a reconstituted vial and the volume that contains a given mass of lyophilised research peptide. This tool converts numbers you enter. It does not recommend an amount, a frequency, or a route.

Concentration

Concentration = mass in the vial ÷ solvent added.

Vial contents

Solvent volume (mL)

Target amountUnit

Result

Concentration: 5mg/mL
Volume for target: 0.05mL
Microlitres: 50µL
U-100 units: 5U

1 mg = 1000 mcg. 1 mL = 1000 µL = 100 units on a U-100 syringe. 1 unit = 0.01 mL.

Dilution (C1V1 = C2V2)

To make a weaker working solution from a stock. Example: 2 mL at 1 mg/mL from a 5 mg/mL stock takes 0.4 mL of stock and 1.6 mL of diluent.

Stock C1 (mg/mL)Final C2 (mg/mL)Final volume V2 (mL)

Stock to take (V1): 0.4 mL
Diluent to add: 1.6 mL

Try it with a catalogue product

KPV 10mg - Vial is a 10 mg vial in the catalogue. Run the numbers above with its actual mass.

View KPV 10mg - Vial