From vial to draw
The calculator adds up the liquid in the vial, finds the strength, and turns the amount per dose into a volume and then into syringe units:
total liquid = water added + additional liquid
concentration = peptide in vial ÷ total liquid
draw (mL) = amount per dose ÷ concentration
units = draw (mL) × syringe units per mL
Doses per vial counts whole doses only: the peptide in the vial divided by the amount per dose, rounded down.