Enter your vial size and the amount of bacteriostatic water you are adding. The calculator returns the concentration (mg/mL), the volume to draw for a given amount, and the equivalent U-100 insulin-syringe units — and builds a printable vial label.
For informational use only — not medical advice · 21+
Reconstitution calculator & label maker Info · 21+
Enter your vial details to get concentration, draw volume, the mark on a U-100 syringe, how long the vial lasts, and a printable label.
Concentration
5 mg/mL
Volume to draw
0.2 mL
On U-100 syringe
20 units
Doses per vial
10 doses
Vial lasts about
10 weeks
Draw to the 20 unit mark · 0.2 mL
Vial label
Compound name
5 mg/mL
NOT MEDICAL ADVICE · FOR INFORMATIONAL USE ONLY · 21+
vialhelp.comFor informational use only. This tool reports concentration, volume, supply, and labeling figures for your own record-keeping. It is not medical advice. Verify all values independently. 21+.
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How to use this calculator
Enter the amount of peptide in your vial (mg) and the volume of bacteriostatic water you are adding (mL). The calculator returns the resulting concentration in mg/mL, the volume needed to measure any amount you choose, the matching mark on a U-100 insulin syringe, and how many such portions a vial yields. Work in mg and mg/mL first, and treat the syringe units only as a volume readout.
Worked example
A 10 mg vial reconstituted with 2 mL of BAC water gives a concentration of 5 mg/mL. To measure 1 mg you would draw 0.2 mL, which lines up with the 20-unit mark on a U-100 syringe, and the vial contains ten such 1 mg portions.
These are laboratory concentration and volume relationships for informational use only — not dosing or medical advice.