Tool · Free
RECONSTITUTION
CALCULATOR
How many units to draw on a U-100 insulin syringe. Plug in the mg on the vial, the mL of bacteriostatic water you'll add, and the target dose — the answer updates as you type.
Inputs
Draw This Much
Units on a U-100 insulin syringe
5.00IU
= 0.050 mL per dose
- Concentration
- 5.00 mg/mL
- Per IU
- 50.0 mcg
- Doses per vial
- 40.0
- Dose in mg
- 0.250 mg
How It Works
A U-100 insulin syringe divides one milliliter into 100 units. So if you reconstitute a 5 mg BPC-157 vial with 2 mL of bacteriostatic water, each mL contains 2.5 mg — and each IU (1/100th of a mL) contains 25 mcg. Ten IU then delivers a 250 mcg dose.
Changing the BAC water volume changes the concentration, not the total peptide available. A 5 mg vial gives you 5 mg of peptide whether you mix it with 1 mL or 3 mL of water — just fewer-or-more units per injection. More water = more precise dosing for small doses, less water = easier reads for larger doses.
The calculator assumes a standard U-100 insulin syringe. If you're using a tuberculin (1 mL graduated) syringe, the “volume per dose” number in milliliters is what you want instead of the IU figure.
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