How dose volume is calculated
Dose volume is calculated by dividing your target dose by the concentration of the vial. The result is the amount of liquid to draw for that dose.
Syringe units are a second conversion from mL to the markings on your syringe. The same mL volume can show a different unit number on different syringe scales.
- Target dose / concentration = mL to draw
- mL x 100 = U-100 units
- mL x 50 = U-50 units
10 units equals how many mL?
Units are syringe markings, so the mL answer depends on the syringe scale. On a U-100 syringe, 10 units is 0.1 mL.
On a U-50 syringe, 10 units is 0.2 mL. On a U-40 syringe, 10 units is 0.25 mL.
- U-100: 10 units = 0.1 mL
- U-50: 10 units = 0.2 mL
- U-40: 10 units = 0.25 mL
50 units to mg depends on concentration
On a U-100 syringe, 50 units is 0.5 mL. That still does not tell you the peptide amount until concentration is known.
If the vial is 2.5 mg/mL, then 0.5 mL contains 1.25 mg. If the vial is 5 mg/mL, then 0.5 mL contains 2.5 mg.
- 50 U-100 units = 0.5 mL
- 0.5 mL x 2.5 mg/mL = 1.25 mg
- 0.5 mL x 5 mg/mL = 2.5 mg
Useful for units-to-mg questions
Many search questions start with a unit marking such as 10 units, 25 units, or 50 units. The safe way to interpret that number is to tie it back to concentration and syringe type.
If either concentration or syringe type is unknown, the unit number alone is not enough to identify a dose.