Tirzepatide Units Converter

Convert tirzepatide doses from mg to insulin syringe units in seconds. Select your vial concentration and target dose to get the exact units to draw on your syringe.

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Tirzepatide dosage chart in units

Syringe units for common tirzepatide doses at typical compounded concentrations. All values assume a standard U-100 insulin syringe (1 unit = 0.01 mL).

Dose	5 mg/mL	10 mg/mL	15 mg/mL
2.5 mg	50 units0.500 mL	25 units0.250 mL	16.7 units0.167 mL
5 mg	100 units1.000 mL	50 units0.500 mL	33.3 units0.333 mL
7.5 mg	150 units1.500 mL	75 units0.750 mL	50 units0.500 mL
10 mg	200 units2.000 mL	100 units1.000 mL	66.7 units0.667 mL
12.5 mg	250 units2.500 mL	125 units1.250 mL	83.3 units0.833 mL
15 mg	300 units3.000 mL	150 units1.500 mL	100 units1.000 mL

Concentration is set at reconstitution: divide vial size (mg) by BAC water added (mL). E.g., 10 mg vial + 2 mL BAC water = 5 mg/mL. Use the BAC water helper in the tool above.

Tirzepatide units to mg chart

Already know how many units you drew? Use this reference to find the mg dose at your concentration. All values assume a U-100 syringe (1 unit = 0.01 mL).

Units drawn	@ 5 mg/mL → mg	@ 10 mg/mL → mg	@ 15 mg/mL → mg
15 units0.15 mL	0.8 mg750 mcg	1.5 mg1500 mcg	2.3 mg2250 mcg
17 units0.17 mL	0.9 mg850 mcg	1.7 mg1700 mcg	2.6 mg2550 mcg
25 units0.25 mL	1.3 mg1250 mcg	2.5 mg2500 mcg	3.8 mg3750 mcg
33 units0.33 mL	1.7 mg1650 mcg	3.3 mg3300 mcg	5.0 mg4950 mcg
50 units0.50 mL	2.5 mg2500 mcg	5 mg5000 mcg	7.5 mg7500 mcg
75 units0.75 mL	3.8 mg3750 mcg	7.5 mg7500 mcg	11.3 mg11250 mcg
100 units1.00 mL	5 mg5000 mcg	10 mg10000 mcg	15 mg15000 mcg
150 units1.50 mL	7.5 mg7500 mcg	15 mg15000 mcg	22.5 mg22500 mcg

Formula: units ÷ 100 = mL; mL × concentration = mg dose. Use the “units → mg” toggle in the converter above for any value.

How to convert tirzepatide mg to syringe units

Compounded tirzepatide is a dual GIP/GLP-1 receptor agonist prescribed for weight management. Like semaglutide, it comes as a powder that must be reconstituted with bacteriostatic water before injection. The concentration you create determines how many units you draw per dose.

Because tirzepatide doses are higher in mg terms (starting at 2.5 mg weekly and titrating up to 15 mg), it is typically reconstituted at higher concentrations (5–15 mg/mL) to keep the injection volume small.

Example: 5 mg at 10 mg/mL

5 mg ÷ 10 mg/mL = 0.5 mL

0.5 mL × 100 = 50 units

Fits in a 0.5 mL (50-unit) insulin syringe

The FDA-approved titration schedule for tirzepatide starts at 2.5 mg once weekly for 4 weeks, then increases in 2.5 mg increments every 4 weeks up to the maintenance dose. Use the titration calculator to generate your full escalation schedule with exact dates.

Frequently Asked Questions

How many units is 2.5 mg of tirzepatide?

At 5 mg/mL: 50 units. At 10 mg/mL: 25 units. At 15 mg/mL: approximately 16.7 units. Use the converter above for any concentration.

How many units is 5 mg of tirzepatide?

At 5 mg/mL: 100 units (a full 1 mL syringe). At 10 mg/mL: 50 units. At 15 mg/mL: approximately 33 units.

How many units is 7.5 mg of tirzepatide?

At 5 mg/mL: 150 units — this exceeds one syringe and would require two injections. At 10 mg/mL: 75 units. At 15 mg/mL: 50 units (fits in a 0.5 mL syringe).

How many units is 10 mg of tirzepatide?

At 5 mg/mL: 200 units (two full syringes). At 10 mg/mL: 100 units (one 1 mL syringe). At 15 mg/mL: approximately 67 units.

How many units is 15 mg of tirzepatide?

At 5 mg/mL: 300 units (three injections). At 10 mg/mL: 150 units (requires two injections or a larger syringe). At 15 mg/mL: 100 units (one 1 mL syringe — the most practical option for this dose).

What concentration is compounded tirzepatide typically reconstituted at?

Common concentrations are 5 mg/mL and 10 mg/mL. A 10 mg vial with 2 mL of BAC water gives 5 mg/mL; with 1 mL it gives 10 mg/mL. Higher concentrations mean fewer units drawn per dose.

What syringe size should I use for tirzepatide?

At 10 mg/mL, a 2.5 mg dose = 25 units (0.25 mL) — fits in a 0.3 mL syringe. A 5 mg dose = 50 units — fits in a 0.5 mL syringe. Doses above 5 mg at 10 mg/mL, or any dose at 5 mg/mL, may require a 1 mL syringe or splitting into two injections.

How does tirzepatide differ from semaglutide in terms of dosing units?

Tirzepatide doses are higher in mg (2.5–15 mg weekly) than semaglutide (0.25–2.4 mg weekly). So tirzepatide is reconstituted at higher concentrations (5–15 mg/mL vs. 0.5–2.5 mg/mL) to keep injection volume manageable.

Related tools & guides

Tirzepatide Dosing Guide

Clinical overview of tirzepatide doses, titration schedules, mechanisms, and protocols.

Peptide Titration Calculator

Generate a week-by-week tirzepatide dose escalation schedule with exact dates.

Peptide Reconstitution Calculator

Calculate syringe units from vial size and BAC water volume with cost-per-dose.

Semaglutide Units Converter

Convert semaglutide doses to syringe units with a complete dosing chart.

Find a tirzepatide-prescribing clinic

Compare licensed telehealth and in-person clinics that prescribe tirzepatide for weight management. MyPeptideMatch verifies providers and helps you find the right clinic.

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Medical disclaimer: This tool is provided for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Tirzepatide dosing should be supervised by a licensed healthcare provider. Always consult your prescribing physician before adjusting any dose.