Reconstitution Calculator
Enter your vial size, BAC water volume, and dose. Get the insulin syringe IU instantly.
Open the trackerHow peptide reconstitution math works
Vials are sold by mass (mg). You add bacteriostatic water (ml) to dissolve the peptide. The result is a concentration (mg/ml). Your dose (mcg or mg) is then divided by that concentration to find a volume (ml) — and on a U-100 insulin syringe, every 1 ml equals 100 units. So 0.25 ml = 25 IU.
Why use insulin syringes?
U-100 insulin syringes hold tiny, precisely measured volumes. They're standard for subcutaneous research peptide injections because typical doses sit between 5 and 50 IU.
Frequently asked questions
How does a peptide reconstitution calculator work?
It divides your vial size (mg) by the volume of BAC water you add (ml) to get concentration in mg/ml, then converts your dose to volume in ml and finally to insulin syringe IU (U-100, where 1 ml = 100 IU).
What's the formula?
Concentration mg/ml = vial mg ÷ BAC ml. Dose volume ml = dose mg ÷ concentration. IU on U-100 syringe = dose volume ml × 100.
What is BAC water?
Bacteriostatic water — sterile water with 0.9% benzyl alcohol — commonly used to reconstitute multi-use peptide vials.
Can I save my calculations?
Yes. Open the full tracker to save the compound, log injections, and track cycle progress over time.