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GLP-1 Tools

How many units is 10 mg of tirzepatide?

10 mg of tirzepatide is 100 units on a U-100 syringe from a 10 mg/mL vial, 200 units from a 5 mg/mL vial, and 50 units from a 20 mg/mL vial.

Medically reviewed by Dr. Nezar Dahdal, Medical Director · last reviewed September 2026

10 mg of tirzepatide in units, by vial strength

Tirzepatide: units to draw on a U-100 syringe, by prescribed dose and vial concentration
Prescribed dose5 mg/mL vial10 mg/mL vial20 mg/mL vial
10 mg200 units (2 mL)100 units (1 mL)50 units (0.5 mL)

10 mg is a maintenance dose in the prescribing information. Increases from here are in 2.5 mg steps, to a maximum of 15 mg. Your prescriber decides when, and whether, to change it.

Tirzepatide dose calculator

Enter the dose your prescriber gave you and the concentration printed on your vial label. The calculator converts it to units on a U-100 insulin syringe.

Enter your prescribed dose and your vial concentration to see the units.

This converts a dose you have already been prescribed. It does not recommend a dose. Always use the concentration printed on your pharmacy label. If the number here does not match what you were told, stop and call your prescriber before injecting.

Compounded tirzepatide and semaglutide are not FDA-approved. They are prepared by a licensed pharmacy for an individual patient, and their strength varies from pharmacy to pharmacy, which is exactly why the concentration on your own label is the number that matters. Brand pens (Zepbound, Mounjaro, Wegovy, Ozempic) deliver a fixed dose and need no conversion.

Every dose in one chart

The units for every tirzepatide dose step are in the tirzepatide dosage chart, alongside the weekly schedule from the prescribing information.

Sources

  1. Zepbound (tirzepatide) prescribing information, DailyMed, US National Library of Medicine
  2. Mounjaro (tirzepatide) prescribing information, DailyMed
  3. FDA: FDA's concerns with unapproved GLP-1 drugs used for weight loss
Frequently Asked Questions

Answers before you book

How many units is 10 mg of tirzepatide?

10 mg of tirzepatide is 100 units on a U-100 syringe from a 10 mg/mL vial, 200 units from a 5 mg/mL vial, and 50 units from a 20 mg/mL vial. Always use the concentration printed on your own vial.

How many mL is 10 mg of tirzepatide?

1 mL from a 10 mg/mL vial, 2 mL from 5 mg/mL, and 0.5 mL from 20 mg/mL.

What if my vial is a different strength?

Divide the dose in mg by the vial concentration in mg/mL and multiply by 100, or use the calculator on this page.

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