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mg → syringe units converter

The conversion is (dose ÷ concentration) × 100 for a U-100 syringe. The trap is that the same milligram dose is a different mark on the syringe at every concentration.

mg → syringe units converter

U-100 syringe. Formula: (dose ÷ concentration) × 100.

12.5units on a U-100 syringe
= 0.125 mL  ·  2.5 mg at 20 mg/mL

Check the concentration printed on the vial you are actually holding. The same dose in milligrams is a completely different mark on the syringe at a different concentration. If the number here does not match what your prescriber told you, trust your prescriber.

Reference tables

Zepbound dose → units reference

U-100 syringe units for each labelled dose, at the concentrations commonly supplied.

Dose5 mg/mL10 mg/mL20 mg/mL
2.5 mg50.0 u25.0 u12.5 u
5 mg100.0 u50.0 u25.0 u
7.5 mg150.0 u75.0 u37.5 u
10 mg200.0 u100.0 u50.0 u
12.5 mg250.0 u125.0 u62.5 u
15 mg300.0 u150.0 u75.0 u

Only use the column matching the concentration printed on your vial.

Mounjaro dose → units reference

U-100 syringe units for each labelled dose, at the concentrations commonly supplied.

Dose5 mg/mL10 mg/mL20 mg/mL
2.5 mg50.0 u25.0 u12.5 u
5 mg100.0 u50.0 u25.0 u
7.5 mg150.0 u75.0 u37.5 u
10 mg200.0 u100.0 u50.0 u
12.5 mg250.0 u125.0 u62.5 u
15 mg300.0 u150.0 u75.0 u

Only use the column matching the concentration printed on your vial.

Wegovy dose → units reference

U-100 syringe units for each labelled dose, at the concentrations commonly supplied.

Dose1 mg/mL2.5 mg/mL5 mg/mL
0.25 mg25.0 u10.0 u5.0 u
0.5 mg50.0 u20.0 u10.0 u
1 mg100.0 u40.0 u20.0 u
1.7 mg170.0 u68.0 u34.0 u
2.4 mg240.0 u96.0 u48.0 u

Only use the column matching the concentration printed on your vial.

Ozempic dose → units reference

U-100 syringe units for each labelled dose, at the concentrations commonly supplied.

Dose1 mg/mL2.5 mg/mL5 mg/mL
0.25 mg25.0 u10.0 u5.0 u
0.5 mg50.0 u20.0 u10.0 u
1 mg100.0 u40.0 u20.0 u
2 mg200.0 u80.0 u40.0 u

Only use the column matching the concentration printed on your vial.

Saxenda dose → units reference

U-100 syringe units for each labelled dose, at the concentrations commonly supplied.

Dose6 mg/mL
0.6 mg10.0 u
1.2 mg20.0 u
1.8 mg30.0 u
2.4 mg40.0 u
3 mg50.0 u

Only use the column matching the concentration printed on your vial.