Semaglutide Units to mg Calculator
Convert prescribed semaglutide syringe units to mg, or a prescribed mg dose to U-100 units, using your vial details.
Result
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Converted value
— mg
- Concentration
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- Concentration per unit
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- Whole doses per vial
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U-100 only. Your prescribing clinician's instructions govern. Confirm the arithmetic with your pharmacist.
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How the semaglutide conversion works
To answer how many mg is 40 units of semaglutide, enter the strength of your own vial and the bacteriostatic water added. The calculator finds the vial concentration, then converts between U-100 syringe units and mg.
A U-100 insulin syringe is marked so 100 units equal 1 mL, which means 1 unit equals 0.01 mL. One mg equals 1000 mcg, so the concentration can also be shown as mcg per unit.
This converts a dose you have already been prescribed. Your prescribing clinician's instructions govern, and you should confirm the arithmetic with your pharmacist.
mg = (units ÷ 100) × (vial strength mg ÷ water mL) U-100 is required for the units result. U-40 and U-500 syringes exist and would give a different answer. Do not use this tool to choose a dose, starting dose, titration schedule or escalation.
Semaglutide units to mg FAQ
How many mg is 40 units of semaglutide?
It depends on your vial strength and the amount of water added. For the worked example of a 5 mg vial reconstituted with 2 mL, 40 U-100 units equals 1 mg.
What does U-100 mean here?
U-100 means 100 syringe units equal 1 mL, so 1 unit equals 0.01 mL. Confirm that your syringe is marked U-100; U-40 and U-500 syringes give different results.
Does this calculator recommend a semaglutide dose?
No. It only converts a dose you have already been prescribed. Your prescribing clinician's instructions govern; confirm the arithmetic with your pharmacist.
Does the vial dose count include partial doses?
No. The result is the number of whole doses found by flooring vial strength divided by the prescribed dose in mg.
Are my values saved?
No. The calculation runs in your browser and this tool does not save the values you enter.