Insulin Syringe Units Explained
Most peptide dosing uses U-100 insulin syringes. Understanding what a "unit" means makes drawing an accurate dose straightforward.
Units and milliliters
On a U-100 insulin syringe, 100 units equals 1 mL. So 1 unit = 0.01 mL, and 50 units = 0.5 mL. The peptide calculator converts your dose into units on this scale automatically.
Common barrel sizes are 30, 50, and 100 units. Choosing more bacteriostatic water spreads a dose across more units, which is easier to read accurately on a small barrel.
Ready to calculate your dose?
Use the free peptide reconstitution calculator to convert any dose into insulin-syringe units.
Open the calculator →Frequently asked questions
How many units are in 1 mL?+
On a U-100 insulin syringe, 1 mL = 100 units.
Why does my dose land on a fraction of a unit?+
The concentration set by your bacteriostatic water amount decides this. Adjust the water volume — the calculator can suggest an amount that makes your dose land on a whole number of units.