Peptide LibraryHow many units is 2 mg?
2 mg is 40 units on a U-100 insulin syringe when the solution is 5 mg/mL (a 10 mg vial mixed with 2 mL of water), which is 0.4 mL. The number of units depends on the concentration: from 20 units at 10 mg/mL to 80 units at 2.5 mg/mL.
For research use only. Not medical advice. This page converts an amount; it does not recommend one.
2 mg at common concentrations
| Vial and water | Concentration | Volume | U-100 units | U-40 units |
|---|---|---|---|---|
| 5 mg in 2 mL | 2.5 mg/mL | 0.8 mL | 80 units | 32 units |
| 10 mg in 3 mL | 3.33 mg/mL | 0.6 mL | 60 units | 24 units |
| 10 mg in 2 mL | 5 mg/mL | 0.4 mL | 40 units | 16 units |
| 15 mg in 2 mL | 7.5 mg/mL | 0.267 mL | 26.7 units | 10.7 units |
| 10 mg in 1 mL | 10 mg/mL | 0.2 mL | 20 units | 8 units |
Concentration is the mg in the vial divided by the mL of water added. Units measure volume: 100 units fill 1 mL on a U-100 syringe.
Convert another amount
At 5 mg/mL on a U-100 syringe.
Draw 0.50 mL (≈ 50 units on a 0.5 mL syringe)
Common questions
Do insulin syringe units depend on the peptide?
No. Units are marks of volume: on a U-100 syringe, 100 units fill 1 mL. What changes between peptides is the concentration of the solution, which is the mg in the vial divided by the mL of water added.
What if my syringe is U-40?
A U-40 syringe has 40 marks per mL, so the same volume reads as 2.5 times fewer units. Read the scale printed on the syringe and use the matching column.
Is 2 mg a typical amount?
This page converts 2 mg because people search for that number. It is not a suggested amount; Peptide Library does not recommend doses. The library's profiles list what published studies used, with sources.