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CALCULATOR

Reconstitution calculator

After you mix a peptide vial with bacteriostatic water, this works out the concentration, how much liquid to draw for a given dose, and where that lands on an insulin syringe. It's arithmetic only — enter the dose your prescriber gave you; we don't recommend doses.

mg
Total milligrams printed on the vial.
mL
How much liquid you drew into the vial to reconstitute.
Per injection, exactly as your prescriber wrote it.
Both numbers are printed on the barrel: the U-number is the scale, the millilitres are the size.
Draw to this line — units on your syringe
Concentration
—
Volume per dose
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Doses per vial
—
Per-unit amount
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This tool performs unit conversions only and is not medical advice or a dosing recommendation. Doses, mixing ratios, and storage should be set with your licensed prescriber. See our Medical Disclaimer. Need the underlying method? Read the reconstitution guide.