Free tool
Reconstitution Calculator
Enter the vial amount, BAC water, and an existing dose to calculate concentration and standard insulin-syringe units.
1
Enter what is on your vial
Use the total amount printed on the vial.
2
Enter BAC water
Use the amount you intend to add—not a suggested amount.
3
For your dose
Enter the dose you already chose. This calculator does not choose one.
Calculation
Your result will appear here
Complete all three fields with numbers greater than zero.
Syringe size: This result is the same on a 30-unit, 50-unit, or 100-unit capacity syringe when each is marked U-100 (100 units per mL). Check every value against the vial label and syringe markings. This tool performs concentration math only and does not provide medical advice or determine a dose.