Semaglutide Units to mg
Converting semaglutide between mg and U-100 syringe units needs the concentration (mg/mL) printed on the vial. The amount itself must come from your prescriber.
Type in either Units or Amount — the other fills in.
Formula
- units = mg ÷ concentration (mg/mL) × 100
- mg = units ÷ 100 × concentration (mg/mL)
Semaglutide units chart
Rows are the dose-per-injection strengths listed in Section 3 of the FDA labeling for Ozempic and Wegovy (see the semaglutide calculator page for the verbatim label text). Columns are concentrations. Cells show U-100 units; "—" means more than 100 units. Arithmetic reference only — not a titration schedule.
| mg ↓ / mg/mL → | 0.68 | 1 | 1.34 | 2 | 2.5 | 2.68 | 3.2 | 5 |
|---|---|---|---|---|---|---|---|---|
| 0.25 mg | 36.8 | 25 | 18.7 | 12.5 | 10 | 9.3 | 7.8 | 5 |
| 0.5 mg | 73.5 | 50 | 37.3 | 25 | 20 | 18.7 | 15.6 | 10 |
| 1 mg | — | 100 | 74.6 | 50 | 40 | 37.3 | 31.3 | 20 |
| 1.7 mg | — | — | — | 85 | 68 | 63.4 | 53.1 | 34 |
| 2 mg | — | — | — | 100 | 80 | 74.6 | 62.5 | 40 |
| 2.4 mg | — | — | — | — | 96 | 89.6 | 75 | 48 |
| 7.2 mg | — | — | — | — | — | — | — | — |
Columns 0.68, 1.34 and 2.68 mg/mL are the Ozempic pen strengths and 3.2 mg/mL is Wegovy FlexTouch, as printed in the FDA labels.
Approved products vs compounded vials
Ozempic and Wegovy are FDA-approved and come as pens or vials with fixed strengths, used as supplied per the Instructions for Use — you do not convert units for them. Compounded semaglutide from pharmacies is not FDA-approved, and concentrations differ between pharmacies, which is why a units chart must always be read against your vial's mg/mL.
FAQ
How many units is 0.25 mg of semaglutide?
It depends on concentration: units = mg ÷ (mg/mL) × 100. At 2.5 mg/mL, 0.25 mg = 10 units on a U-100 syringe. Check the mg/mL on your own vial label.
Is there a standard semaglutide units-to-mg conversion?
No. Units are volume (0.01 mL each), so the conversion changes with every concentration. The FDA-approved pens deliver fixed doses and are not read in units at all.
Are compounded semaglutide vials FDA-approved?
No. Compounded drugs are not FDA-approved; FDA does not review them for safety, effectiveness or quality before marketing. Use them only through a licensed prescriber and pharmacy, and follow their instructions.
Other conversions: units to mg (any drug) · mcg to units chart · reading syringe units
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