GLP-1 Dose Calculator — mg ↔ mcg ↔ mL ↔ units | Pepio
DOSE CALCULATORS

GLP-1 Dose Calculator

Translate between the units printed on a vial / pen and the units marked on a U-100 syringe.

Convert between mg, mcg, mL, and U-100 / U-40 syringe units. Useful any time the units printed on a vial don't match the units printed on your syringe.

Enter any one — the others recalc:

Why GLP-1 dose math gets confusing

Branded pens like Wegovy and Ozempic are pre-set in mg. Compounded vials are usually labelled in mg/mL, but you draw the dose with an insulin syringe marked in units. The relationship is fixed: 1 mL = 100 units on a U-100 syringe (40 on a U-40). This tool applies that relationship in both directions so you can sanity-check what your prescriber or pharmacy told you to draw.

FAQs

Because compounded GLP-1 medications are typically drawn from a vial using an insulin syringe, and the syringe is marked in units, not mg. The unit count depends on the vial concentration.

Branded pens (Wegovy, Ozempic, Mounjaro, Zepbound) deliver pre-set doses — there's nothing to draw. This calculator is most useful for compounded vials and peptides where you draw from a multi-dose vial yourself.
For self-tracking and educational organisation only

Pepio's free tools help you organise your own records. They do not provide medical advice, diagnosis, treatment guidance, or dosing recommendations. Always follow instructions from your licensed clinician, pharmacist, or medication label.

Compounded and research-labelled products may carry additional safety and regulatory considerations. Pepio does not verify product quality or recommend protocols. If you experience severe symptoms, contact your clinician or seek urgent medical care.

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