What this calculator does
Some vials hold two, three, or four peptides mixed together, like a BPC-157 and TB-500 blend. Because they share the same liquid, you cannot set each dose on its own. The moment you decide how much of one peptide to draw, the amounts of the others are already fixed by their ratio in the vial. This calculator makes that trade-off visible.
Enter each peptide and its milligrams, the water you reconstituted with, and which peptide your target dose is measured by. The result is the units to draw for that peptide, plus a line for every other compound showing exactly how many micrograms come along in the same shot.
Reading the result
The main number is the draw for your chosen peptide. The per-injection list is the important part of a blend: it shows what else you are taking at that draw, so you can check whether the ride-along amounts land where you want. If they do not, the only levers are the target dose or the ratio you mix at. The math assumes an evenly mixed vial; it does not judge whether the combination is stable or safe to run together.