Peptide Calculator.
Plug in your vial size, bacteriostatic water volume, and desired dose. We'll show the exact insulin-syringe units. No signup. No tracking.
Reconstitution Calculator
Most popularConvert vial size + diluent volume + dose into insulin-syringe units (U-100).
Concentration & Dose Reference
Reference tableSet vial size and diluent. See concentration and the syringe units for common doses.
| Dose | Units (U-100) | mL |
|---|---|---|
| 100 mcg | 2.0 | 0.020 |
| 250 mcg | 5.0 | 0.050 |
| 500 mcg | 10.0 | 0.100 |
| 1 mg | 20.0 | 0.200 |
| 2.5 mg | 50.0 | 0.500 |
| 5 mg | 100.0 | 1.000 |
U-100 syringe assumption
All "unit" outputs assume a standard U-100 insulin syringe where 100 units = 1.0 mL. For U-40 or larger barrels, divide units by 2.5.
Verify what's in the vial
The most common QC failure we see is under-fill — vials labeled 10 mg containing 7–8 mg. The calculator is only as accurate as the labeled potency. Get a vial tested →
Research use only
This calculator is provided for research workflow planning. It is not medical or dosing advice. Consult a qualified clinician for any human-use application.