At a glance
| Mark on U-100, 1 mL | Volume | at 1 mg/mL | at 2 mg/mL | at 2.5 mg/mL | at 5 mg/mL | at 10 mg/mL |
|---|---|---|---|---|---|---|
| 5 units | 0.05 mL | 0.05 mg | 0.1 mg | 0.125 mg | 0.25 mg | 0.5 mg |
| 10 units | 0.1 mL | 0.1 mg | 0.2 mg | 0.25 mg | 0.5 mg | 1 mg |
| 20 units | 0.2 mL | 0.2 mg | 0.4 mg | 0.5 mg | 1 mg | 2 mg |
| 25 units | 0.25 mL | 0.25 mg | 0.5 mg | 0.625 mg | 1.25 mg | 2.5 mg |
| 40 units | 0.4 mL | 0.4 mg | 0.8 mg | 1 mg | 2 mg | 4 mg |
| 50 units | 0.5 mL | 0.5 mg | 1 mg | 1.25 mg | 2.5 mg | 5 mg |
| 100 units | 1 mL | 1 mg | 2 mg | 2.5 mg | 5 mg | 10 mg |
Arithmetic at the concentrations shown. The concentration on your own label is the one that counts; enter it in the calculator.
Why the milligrams depend on the pharmacy label
10 units is 0.1 mL. Of semaglutide that is 0.1 mg at 1 mg/mL, 0.25 mg at 2.5 mg/mL, 0.5 mg at 5 mg/mL and 1 mg at 10 mg/mL, a ten-fold range across concentrations pharmacies actually dispense. The range is the point of this page. Someone who reads "10 units" in a group chat and applies it to their own vial has a one-in-several chance of being right, and the misses are not small. The Wegovy and Ozempic labels cannot settle it, because those products are pens with no concentration a vial user can borrow. Your pharmacy label is the only document that connects 10 units to a number of milligrams, and if it gives an amount and a volume rather than mg/mL, divide the first by the second before you multiply.
The mistake to watch for. 10 units on a 1 mL syringe sits on a marked line, but the marks are every 2 units and the barrel is long. A 0.5 mL syringe shows the same 10 units with twice the spacing. Same dose, easier to read.