How many units is 2.4 mg of semaglutide?

It depends on the mg/mL of your vial: on a U-100 insulin syringe, units = mg ÷ (mg/mL) × 100, so 2.4 mg of semaglutide reads differently on every strength, and on weaker vials it fills most or all of a 1 mL syringe. Check the strength on your pharmacy label, then find its row below or enter it in the semaglutide units calculator.

On Wegovy, 2.4 mg is a fixed dose: the single-dose pen and syringe hold 2.4 mg in 0.75 mL, and the FlexTouch pen can only select 2.4 mg. It is above Ozempic’s top dose of 2 mg, so no Ozempic pen gives it.

2.4 mg in units at example strengths

The strengths here are examples, the ones the semaglutide 5 mg vial and semaglutide 10 mg vial pages produce with 1, 2 or 2.5 mL of water. They aren’t recommendations, and someone else’s vial tells you nothing about yours.

How many mL and U-100 units 2.4 mg is at each strength.

Strength	Volume	Units (U-100)
2 mg/mL	1.2 mL	120 units
2.5 mg/mL	0.96 mL	96 units
4 mg/mL	0.6 mL	60 units
5 mg/mL	0.48 mL	48 units
10 mg/mL	0.24 mL	24 units

The same amount is a different number of units at each strength, so check the mg/mL on your vial or pharmacy label. U-100 syringe: 100 units = 1 mL.

More than 100 units does not fit in a 1 mL syringe.

Two things stand out at this dose. At the weakest example strength, 2.4 mg is more than a 1 mL syringe holds. And at the weaker strengths, it won’t fit in a 30 or 50-unit syringe either. If your number is close to or above your syringe’s capacity, don’t work around it yourself: ask your pharmacist or prescriber what to do. The FDA asks prescribers and compounders to supply “the appropriate syringe size for the intended dose” (FDA).

One vial, worked through

An example with a weaker mix, a 5 mg vial with 2 mL of water, and 2.4 mg as the amount on the prescription:

1. 1Strength once mixed5 mg ÷ 2 mL = 2.5 mg/mL
2. 2Volume for this amount2.4 mg ÷ 2.5 mg/mL = 0.96 mL
3. 3In syringe units0.96 mL × 100 = 96 units

An example of the arithmetic, not a dose. Use your own vial, water and the dose your prescriber gave you in the calculator.

Here one draw takes up nearly the whole barrel of a 100-unit syringe. The same 2.4 mg from a stronger vial would be a much smaller draw, which is why your pharmacy’s mg/mL, not a number from a forum or a friend, decides the mark. To see where a reading sits, use the syringe reader.

How many 2.4 mg draws a vial holds

On paper, a 5 mg vial holds two full 2.4 mg draws and a 10 mg vial holds four, whatever the water volume. Two FDA rules for compounded multi-dose vials apply on top of that count:

• “Discard the vial within 28 days after the first use, even if medication remains in the vial,” and even if the compounder’s instructions say longer.
• “Always use a new, sterile needle and syringe for each dose.”

(FDA). Count your draws against the date, not just against what’s left in the vial.

Where 2.4 mg sits on the labels

• Wegovy injection, the maintenance dose. After the escalation in the label’s Table 1 (0.25, 0.5, 1 and 1.7 mg, four weeks each), maintenance starts at week 17. The label calls 2.4 mg “recommended” for cardiovascular risk reduction, for weight reduction in adults and in children 12 and older, and for MASH (Wegovy label, section 2.2).
• Not the top Wegovy dose any more. For adult weight reduction, “For patients who tolerate the 2.4 mg dosage for at least 4 weeks and additional weight reduction is clinically indicated, the dosage may be increased to a maximum dosage of 7.2 mg” (section 2.2), sold as Wegovy HD.
• The switch point with the pill. People on Wegovy 2.4 mg injection “may switch to WEGOVY 25 mg tablets,” starting the tablets one week after the last injection; going the other way, the injection starts the day after the last tablet (section 2.5). See the Wegovy pill.
• Not on the Ozempic label. “The maximum recommended dosage is 2 mg once weekly” (Ozempic label, section 2.2).

These are label facts, not advice. Follow your prescriber, who sets your dose and any change to it.

How Wegovy delivers 2.4 mg

Sources: Wegovy label, sections 3, 5.11 and 16, and Instructions for Use. The carton of single-dose pens or syringes holds 4; the FlexTouch carton holds 1 pen “with 4 weekly doses of 2.4 mg.”

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