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GLP-1 mg → units calculator
Draw your GLP-1 from a vial? Convert your mg dose to insulin-syringe units (U-100) — and back again. Pick your medication for a calculator tuned to its typical concentrations.
GLPMate stores your concentration and counts doses left — with a magnified syringe read. Free.
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This tool is for general education only. It is not medical advice, not a diagnosis, and not a substitute for your prescriber or pharmacist. Doses and schedules are set by your clinician — never start, stop or change a medication based on a web calculator.
mg ↔ units questions
How do you convert GLP-1 mg to units?
Units = (dose in mg ÷ vial concentration in mg/mL) × 100. A U-100 syringe marks 100 units per 1 mL, so the units number is just your draw volume in mL on a finer scale. Pick your medication above for a calculator that does it both ways.
Why do compounded GLP-1 users need this?
Brand pens (Ozempic, Wegovy, Mounjaro, Zepbound pens) are pre-measured. Compounded vials are not — you draw each dose yourself with an insulin syringe, which is marked in units, while your prescription is in mg. This converts between the two.
What if my label only shows total mg?
Divide total drug by total volume to get concentration. A "10 mg / 0.5 mL" vial is 20 mg/mL. Enter that as your concentration.
Is this a dosing recommendation?
No — it's arithmetic. Your dose comes from your prescriber, and you should confirm every conversion with your pharmacist, especially when your vial or dose changes.
Stop redoing the math.
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