Peptide Protocol
Peptide Protocol
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Tirzepatide peptide calculator

Pre-filled Tirzepatide dosage and reconstitution math: a 10 mg vial, 2 ml of bacteriostatic water, and the resulting U-100 insulin-syringe units. Adjust the inputs below or open the full calculator.

Typical 2500 mcg dose:
units on a 100u insulin syringe
= ml per injection · concentration mg/ml
Open full calculator with these values →

How to reconstitute Tirzepatide

  1. Wipe both vial stoppers with a fresh alcohol swab and let them dry.
  2. Draw 2 ml of bacteriostatic water into a syringe.
  3. Insert the needle at an angle into the Tirzepatide vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
  4. Do not shake. Gently swirl the vial until the peptide fully dissolves.
  5. Store the reconstituted vial refrigerated (2–8 °C / 36–46 °F) and use within roughly 28 days.
  6. Draw each dose to the unit mark shown above for your target 2500 mcg dose.

About Tirzepatide

Tirzepatide is a synthetic dual incretin agonist activating both GIP and GLP-1 receptors. Clinical trials show weight loss and glycemic effects exceeding those of GLP-1-only agents.

Half-life: Approximately 5 days (once-weekly dosing)
Typical dose range: Titration: 2.5 mg → 5 mg → 7.5 mg → 10 mg → 12.5 mg → 15 mg weekly
Class: Dual GIP / GLP-1 receptor agonist

Read the full Tirzepatide guide →

Tirzepatide calculator FAQ

Is this a Tirzepatide peptide calculator or a reconstitution calculator?

Both. This Tirzepatide calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.

How much bacteriostatic water for a 10 mg Tirzepatide vial?

This page is pre-filled with 2 ml of bacteriostatic water for a 10 mg Tirzepatide vial because that is a common research ratio. You can adjust the water amount in the full calculator.

How many units is a 2500 mcg Tirzepatide dose?

With the default 10 mg vial and 2 ml BAC-water ratio, the preview above calculates the U-100 syringe units for a 2500 mcg dose. Change the dose if your protocol uses a different amount.

Does this Tirzepatide dosage calculator give medical advice?

No. It only performs unit math. Dosing, titration, and whether Tirzepatide is appropriate are clinical decisions that should be made with a licensed healthcare professional.

Skip the math — let the app handle it

Peptide Protocol pre-fills reconstitution, tracks every dose, and flags rotations automatically.

See the app →

Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.