Lab tools

Peptide Reconstitution Calculator

Enter the labelled vial amount and the volume of bacteriostatic water you added. The calculator returns the concentration of the resulting solution and how much peptide is contained in a given volume, including U-100 insulin-syringe units. This is solution chemistry for laboratory preparation — it is not a dose, and nothing here is guidance for human or veterinary use.

How the math works

1. Concentration = vial amount ÷ diluent volume. A 10 mg vial in 2 mL is 5 mg/mL (5,000 mcg/mL).
2. Amount in a volume = concentration × volume. 0.1 mL of a 5 mg/mL solution contains 0.5 mg (500 mcg).
3. Insulin-syringe units: a U-100 syringe is marked so 100 units = 1 mL, so 1 unit = 0.01 mL. 10 units of a 5 mg/mL solution = 0.1 mL = 500 mcg.

Related: reconstitution guide · bacteriostatic vs sterile water · unit converter · molarity calculator · reconstitution supplies

For laboratory research use only. Not a drug, supplement or medical device; not for human or veterinary use.