TOOLS & RESOURCES
Peptide Dosage Calculator
Enter your vial size, water volume, and desired dose — we'll tell you exactly how many units to draw on your insulin syringe.
For research purposes only. Standard U-100 insulin syringes hold 1 mL = 100 units. Always use bacteriostatic water and store peptides properly.
Vial Size
How many milligrams are in your peptide vial?
Bacteriostatic Water Added
How many mL of BAC water did you add to the vial?
Desired Dose
What dose do you want to administer?
Syringe Size
Select your insulin syringe capacity
Fill in the fields above to see your results
How the Calculation Works
Three simple steps behind every result
01
Reconstitution
Adding BAC water to lyophilized (freeze-dried) peptide powder creates a solution. The concentration = vial size ÷ water volume.
02
Volume to Draw
Divide your desired dose by the concentration to find exactly how many mL you need to pull from the vial.
03
Syringe Units
A U-100 insulin syringe has 100 units per mL. Multiply the volume in mL by 100 to get the syringe unit mark to draw to.
Formula Reference
Concentration = Vial (mg) ÷ BAC Water (mL)
Volume = Dose (mg) ÷ Concentration (mg/mL)
Units = Volume (mL) × 100
Note: if your dose is in mcg, divide by 1,000 to convert to mg before calculating (this calculator does this automatically).
This calculator is provided for research and educational purposes only. West Coast Peptides does not provide medical advice. Always consult a qualified healthcare professional before use.