Peptide calculator
Convert a reconstituted vial into concentration, draw volume in ml, and U-100 insulin syringe units. Free, no sign-up, and the formula stays visible.
This tool only converts the protocol information you entered. It does not recommend a dose.
Concentration
2,500 mcg/ml
Draw volume
0.1 ml
U-100 units
10
Total in vial
5,000 mcg
Per unit
25 mcg/unit
Doses per vial
20
Nearest syringe mark: 10 U-100 units (0% from the exact value).
How the peptide math works
- total mcg = vial amount in mg × 1,000
- concentration (mcg/ml) = total mcg ÷ bacteriostatic water in ml
- draw volume (ml) = dose in mcg ÷ concentration
- U-100 units = draw volume × 100 (1 unit = 0.01 ml)
Keep going
- Peptide dosage chart: mg to ml and insulin unit conversions
- Browse the peptide research index
- Free peptide tracker app