Tirzepatide Reconstitution Calculator
Tirzepatide is a dual GIP/GLP-1 receptor agonist with rapidly growing research literature. Research-grade Tirzepatide ships lyophilized in larger vials (5–15 mg). The titration schedule spans a wide dose range, so concentration math determines exactly how many syringe units each weekly step requires.
For laboratory research use only.
Peptide Reconstitution Calculator
Enter your vial size and bacteriostatic water volume. The calculator outputs the resulting concentration per mL and per insulin syringe unit. For procedural reference only.
Reading the result: If you have a 5mg vial reconstituted with 2mL of BAC water, your concentration is 2,500 mcg/mL. On a U-100 insulin syringe, that's 25 mcg per IU mark.
For laboratory research use only. This calculator is a procedural reference for concentration math. It does not constitute dosing advice. Researchers should consult published literature and qualified expertise for their research protocols.
Tirzepatide concentration reference
Pre-computed concentrations for common Tirzepatide vial sizes (5 mg, 10 mg, 15 mg) across 1–3 mL of bacteriostatic water. All values assume a U-100 insulin syringe.
| Vial | BAC water | Concentration | Per IU (U-100) |
|---|---|---|---|
| 5 mg | 1 mL | 5,000 mcg/mL | 50 mcg |
| 5 mg | 2 mL | 2,500 mcg/mL | 25 mcg |
| 5 mg | 3 mL | 1,667 mcg/mL | 16.7 mcg |
| 10 mg | 1 mL | 10,000 mcg/mL | 100 mcg |
| 10 mg | 2 mL | 5,000 mcg/mL | 50 mcg |
| 10 mg | 3 mL | 3,333 mcg/mL | 33.3 mcg |
| 15 mg | 1 mL | 15,000 mcg/mL | 150 mcg |
| 15 mg | 2 mL | 7,500 mcg/mL | 75 mcg |
| 15 mg | 3 mL | 5,000 mcg/mL | 50 mcg |
Tirzepatide research reference
- Dosing range: Titration: 2.5 mg/wk start, escalating to 15 mg/wk maintenance (published manufacturer titration)
- Administration: Subcutaneous, once weekly
- Storage: Refrigerate after reconstitution; manufacturer guidance is 28 days post-reconstitution.
Ranges summarized from published research literature. Not medical or dosing advice.Tirzepatide and all compounds referenced are for laboratory research use only — not for human consumption.
How the math works
Concentration (mcg/mL) = vial mass (mg) × 1000 ÷ bacteriostatic water volume (mL). For a 10 mg Tirzepatide vial reconstituted with 2 mL, that is 5,000 mcg/mL. On a U-100 insulin syringe (100 IU marks per mL), each IU mark holds 50 mcg.
New to reconstitution? Read our complete reconstitution guide and what bacteriostatic water is. For Tirzepatide specifically, see our Tirzepatide research guide.
Before you reconstitute, verify your vial against its Tirzepatide Certificate of Analysis. Sourcing a fresh vial? See where to buy Tirzepatide — what to check before ordering and how the tested vendors compared.
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