Tirzepatide Dosage Calculator
A dual GIP/GLP-1 receptor agonist studied for metabolic and weight research.
Total amount printed on the vial label.
Changes concentration only — your dose stays the same.
2500 mcg = 2.5 mg
1.0 mL (100-unit) insulin syringe · smallest mark = 2 units · check yours, gradations vary by brand
Show the math
- Concentration: 10 mg ÷ 1 mL = 10.00 mg/mL (10000 mcg/mL)
- Dose volume: 2500 mcg ÷ 10000 mcg/mL = 0.250 mL
- Syringe units: 0.250 mL × 100 = 25 units
How much water should I add?
The same 2500 mcg dose from your 10 mg vial, at each water volume. More water spreads the dose over more units, which is easier to read accurately. Tap a row to use it.
✓ = the draw lands exactly on a mark of your 1.0 mL (100-unit) syringe — no eyeballing between gradations.
Chart a weekly schedule
Tirzepatide is dosed weekly, often stepping up over time. Enter the doses from a schedule you already have and this works out the units to draw each week — and when your vial runs out. It charts your arithmetic; it does not recommend a schedule.
Nothing charted yet. Type the doses from your own schedule above — for a plan that steps up every few weeks, enter each step once and set how many weeks you stay on it.
Calculated on a U-100 insulin syringe (100 units = 1 mL). This is reconstitution arithmetic for Tirzepatide, not a dosing recommendation. Verify against your product label and a qualified professional.
Tirzepatide reconstitution chart
Concentration for each vial size when reconstituted with 1 mL of bacteriostatic water. Change the water amount in the calculator to see other concentrations, or open the full reconstitution chart to compare every dose and water volume at once.
| Vial size | Bac. water | Concentration | Per unit (0.01 mL) |
|---|---|---|---|
| 5 mg | 1 mL | 5.00 mg/mL | 50.0 mcg |
| 10 mg | 1 mL | 10.00 mg/mL | 100.0 mcg |
| 15 mg | 1 mL | 15.00 mg/mL | 150.0 mcg |
| 30 mg | 1 mL | 30.00 mg/mL | 300.0 mcg |
| 60 mg | 1 mL | 60.00 mg/mL | 600.0 mcg |
About Tirzepatide dosing
Tirzepatide (Tirzepatide) is a dual GIP/GLP-1 receptor agonist studied for metabolic and weight research. It is commonly sold in 5 mg, 10 mg, 15 mg, 30 mg, 60 mg vials. Commonly-cited community and research protocols reference a range of 2,500–15,000 mcg, weekly in cited protocols. GLP-1 class peptides use larger mg vials. A reconstitution chart per vial size is on this page.
Remember that the number of syringe units for any dose depends entirely on how much bacteriostatic water you add. The calculator above is pre-filled with a common setup for Tirzepatide; adjust the inputs to match your own vial and the units update instantly.
Check Tirzepatide for yourself
The figures on this page are commonly-cited references for the arithmetic, not prescriptions. These are primary, non-commercial sources where you can verify them independently.
- Tirzepatide studies on ClinicalTrials.gov ↗
Registered human studies, their doses and protocols. If a compound has few or no registered trials, that is worth knowing before relying on any figure.
- Tirzepatide on PubChem ↗
Chemical identity and molecular weight from the NIH.
Tirzepatide calculator — FAQ
How do I reconstitute Tirzepatide?+
GLP-1 class peptides use larger mg vials. A reconstitution chart per vial size is on this page. Add your chosen amount of bacteriostatic water to the vial, swirl gently (never shake), and use the calculator above to convert your target dose into insulin-syringe units.
What is a common Tirzepatide dose?+
Commonly-cited protocols reference 2,500–15,000 mcg, weekly in cited protocols. These are references for the arithmetic, not a prescription — confirm with your product label and a qualified professional.
How many units of Tirzepatide should I draw?+
That depends on your vial size and how much bacteriostatic water you added. Enter both into the calculator above along with your dose and it shows the exact units on a U-100 insulin syringe.