Peptide Calculator
Precision reconstitution for research accuracy. Work out exactly how much bacteriostatic water to add and how many units to draw — deterministic, and free to use. For research use only.
Concentration = vial amount ÷ water added (mg/ml).
Volume to draw = dose ÷ concentration.
On a U-100 insulin syringe, 1 ml = 100 units, so units = volume × 100.
Auto picks a water volume that makes the draw land on a clean tick mark. Manual lets you set the water and shows the resulting draw.
How long will a vial last?
Enter your vial size, your research dose per administration, and how often. We’ll estimate how many doses the vial holds and how long it lasts. Every value is yours — research use only.
All products and tools are provided strictly for laboratory and research purposes only. Not for human or animal consumption. Always confirm calculations independently.