Reconstitution
calculator.
Enter vial size, water, and target dose. Get exact insulin units, concentration, and pins per vial. Math you'd otherwise do twice on the back of an envelope.
e.g. a 5 mg vial
how much you'll add to the vial
per single injection
This calculator turns a vial size, a volume of bacteriostatic water and a target dose into units on an insulin syringe. Concentration is the vial in micrograms divided by the water in millilitres; the dose divided by that gives millilitres, and multiplying by 100 gives units on a U-100.
How do I calculate peptide dosage in units?
Divide the vial contents in micrograms by the millilitres of water to get the concentration. Divide your dose by that for the volume in millilitres, then multiply by 100 for units on a U-100 syringe or by 40 on a U-40.
How many units is 250 mcg from a 5 mg vial?
With 2 ml of water a 5 mg vial is 2500 mcg per ml, so 250 mcg is 0.1 ml — 10 units on a U-100 syringe. With 1 ml of water it is 5 units, and with 3 ml it is 15.
Does more bacteriostatic water mean a weaker dose?
No. It means the same dose sits in more liquid, so you draw more units for it. The amount of compound is unchanged; only the volume it is dissolved in changes.
Can I use this calculator without an account?
Yes. It needs no sign-in, and the result is a link — the inputs live in the address bar, so sending someone the page sends them the same result.
For informational purposes only — Always verify with your physician — Not medical advice