Peptide Reconstitution
Sponsored by
SwissChems
Learn more
This calculator is free to use and its results are not affected by who supports it. Learn more about our editorial standards
Enter vial strength and diluent to get the exact plunger mark.
Vial to syringe
Reconstitution Calculator
Powder in a vial, water in a syringe, and a number that has to be right. Enter the strength of the vial, how much diluent you added, and the dose you want; the calculator gives you the mark to draw to, the concentration you've made, and how many doses the vial holds.
Working the other way — you know your dose and want to know how much water to add to make the maths pleasant — switch to Find diluent. It'll find a volume that puts your dose on a round number.
Syringe
Drag the plunger, or focus it and use the arrow keys, to explore other doses.
Already drawn it and want to check what's in there? Try the reverse reconstitution calculator →
Frequently Asked Questions
Because the diluent volume changed. Units measure volume, not drug. Halve the water and every mark on the barrel carries twice as much — which is the single most common way peptide doses go wrong.
You can use it to understand one. It'll tell you what your current mixture delivers per unit, which is the figure you need before deciding anything. What you do next isn't a maths question.