GLP Units

How many units is 2 mg of semaglutide?

It depends on the strength printed on your vial.

GLP Units is a math tool, not medical advice. Always confirm your dose and syringe amount with your prescriber or pharmacist, and check your vial label.

On a U-100 insulin syringe, 2 mg of semaglutide is 200 units (more than a 1 mL syringe holds) at 1 mg/mL, 100 units at 2 mg/mL, 80 units at 2.5 mg/mL, 50 units at 4 mg/mL, 40 units at 5 mg/mL, 20 units at 10 mg/mL.

At 2.5 mg/mL, the strength most often seen on compounded labels, it is 0.8 mL, which is 80 units. Use the calculator with the strength printed on your own vial.

2 mg of semaglutide in units at every strength

2 mg of semaglutide at every vial strength, on a U-100 insulin syringe. Listed doses are for conversion only. Your prescriber sets your dose.
Vial strengthVolumeUnits (U-100)
1 mg/mL2 mL200 units (more than a 1 mL syringe holds)
2 mg/mL1 mL100 units
2.5 mg/mL0.8 mL80 units
4 mg/mL0.5 mL50 units
5 mg/mL0.4 mL40 units
10 mg/mL0.2 mL20 units

Dose ↔ units

Vial type

I know my…

How long will my vial last?

Uses the vial and dose from the calculator above.

Real vials can hold slightly more or less than the label says, and a little is lost in the needle.

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Same dose, different units

At 2.5 mg/mL, 2 mg is 80 units. Drawing those same 80 units from a 5 mg/mL vial gives 4 mg, not 2 mg. Always check the mg/mL on the vial you are using.

In July 2024 the FDA warned about dosing errors with compounded semaglutide, including mix-ups between mg, mL and units (FDA alert). The same math applies to any vial.

Questions

How many mL is 2 mg of semaglutide?

It depends on the vial: 2 mL at 1 mg/mL, 1 mL at 2 mg/mL, 0.8 mL at 2.5 mg/mL, 0.5 mL at 4 mg/mL, 0.4 mL at 5 mg/mL, 0.2 mL at 10 mg/mL.

Is 2 mg of semaglutide the same number of units on every vial?

No. The units depend on the strength printed on the vial: 200 units (more than a 1 mL syringe holds) at 1 mg/mL, 100 units at 2 mg/mL, 80 units at 2.5 mg/mL, 50 units at 4 mg/mL, 40 units at 5 mg/mL, 20 units at 10 mg/mL.

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