Bacteriostatic Water Calculator
See how different water volumes change concentration in educational reconstitution calculations.
What is the total volume of your syringe?
Select Peptide Vial Quantity
How much bacteriostatic water are you adding?
How much is the selected calculation amount?
For a selected calculation amount of 50 mcg, the U-100 syringe marking is 0.33 units
Volumenergebnis
0.0033 mL
Konzentration
15 mg/mL
Konzentration
15,000 mcg/mL
Spritze gefüllt
1.1%
Rechenerklärung
15 mg = 15,000 mcg. 15,000 mcg / 1 mL = 15,000 mcg per mL. For a selected calculation amount of 50 mcg, 50 / 15,000 = 0.0033 mL. On a U-100 syringe, that equals 0.33 units.
Water volume and concentration
Adding more liquid lowers concentration per mL; adding less liquid raises concentration per mL. The vial amount remains the same, but the amount in each mL changes.
This page explains math only and does not provide instructions for preparing, storing, or using injectable products.
Use with professional guidance
Bacteriostatic water and injectable products involve safety considerations outside this calculator, including sterility and appropriate use.
Consult a licensed healthcare professional or pharmacist before using any medication or injectable product.
Common calculation examples
| Vial amount | Water added | Concentration | Selected amount | mL result | U-100 units |
|---|---|---|---|---|---|
| 5 mg | 1 mL | 5000 mcg/mL | 250 mcg | 0.05 mL | 5 units |
| 5 mg | 2 mL | 2500 mcg/mL | 250 mcg | 0.1 mL | 10 units |
| 10 mg | 2 mL | 5000 mcg/mL | 500 mcg | 0.1 mL | 10 units |
| 10 mg | 3 mL | 3333 mcg/mL | 500 mcg | 0.15 mL | 15 units |
| 15 mg | 3 mL | 5000 mcg/mL | 1000 mcg | 0.2 mL | 20 units |
Häufige Fragen
Does this calculator recommend a peptide dose?
No. It only performs unit conversion and reconstitution math for a selected calculation amount. It does not provide medical advice, prescriptions, dosing schedules, or safety guidance.
What does U-100 mean?
U-100 means 100 insulin syringe units equal 1 mL. The calculator converts the selected mL result into U-100 markings by multiplying mL by 100.
Can this replace advice from a clinician or pharmacist?
No. Any medication, injectable product, or research material can involve risks that math alone cannot evaluate. Consult a licensed healthcare professional or pharmacist.