Calculators / Semaglutide dose charts
Semaglutide dose charts (mg → U-100 units)
Units to draw on a standard U-100 insulin syringe, for each common Semaglutide vial size and BAC-water volume. Doses shown reflect ranges reported in published research — they are reference points for the math, not recommendations. For other numbers, use the live calculator.
2 mg vial
| Dose | + 1 mL water (2 mg/mL) | + 2 mL water (1 mg/mL) | + 3 mL water (0.6666666666666666 mg/mL) |
|---|---|---|---|
| 250 mcg | 12.5 u | 25 u | 37.5 u |
| 500 mcg | 25 u | 50 u | 75 u |
| 1 mg | 50 u | 100 u | > syringe |
| 1.7 mg | 85 u | > syringe | > syringe |
| 2.4 mg | > syringe | > syringe | > syringe |
3 mg vial
| Dose | + 1 mL water (3 mg/mL) | + 2 mL water (1.5 mg/mL) | + 3 mL water (1 mg/mL) |
|---|---|---|---|
| 250 mcg | 8.3 u | 16.7 u | 25 u |
| 500 mcg | 16.7 u | 33.3 u | 50 u |
| 1 mg | 33.3 u | 66.7 u | 100 u |
| 1.7 mg | 56.7 u | > syringe | > syringe |
| 2.4 mg | 80 u | > syringe | > syringe |
5 mg vial
| Dose | + 1 mL water (5 mg/mL) | + 2 mL water (2.5 mg/mL) | + 3 mL water (1.6666666666666667 mg/mL) |
|---|---|---|---|
| 250 mcg | 5 u | 10 u | 15 u |
| 500 mcg | 10 u | 20 u | 30 u |
| 1 mg | 20 u | 40 u | 60 u |
| 1.7 mg | 34 u | 68 u | > syringe |
| 2.4 mg | 48 u | 96 u | > syringe |
10 mg vial
| Dose | + 1 mL water (10 mg/mL) | + 2 mL water (5 mg/mL) | + 3 mL water (3.3333333333333335 mg/mL) |
|---|---|---|---|
| 250 mcg | 2.5 u | 5 u | 7.5 u |
| 500 mcg | 5 u | 10 u | 15 u |
| 1 mg | 10 u | 20 u | 30 u |
| 1.7 mg | 17 u | 34 u | 51 u |
| 2.4 mg | 24 u | 48 u | 72 u |
Formula: units = dose ÷ concentration × 100 · concentration = vial mg ÷ water mL · Semaglutide half-life ≈ 7 days (PubMed 29915923 (semaglutide clinical pharmacokinetics))
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