Tirzepatide dosage calculator
Tirzepatide vials range from 5 mg up to 60 mg. Enter the vial, the water you added and your dose to get the exact mark to draw and how many weeks the vial covers.
Vial size
Common doses
Draw to this mark
50
units on a U-100 insulin syringe (0.5 mL)
- Concentration
- 5 mg/mL
- 5000 mcg/mL
- Doses per vial
- 4
- 2.5 mg each
- Cost per dose
- —
- add a vial cost
Tirzepatide reconstitution chart (10 mg vial)
| Water added | Concentration | 2.5 mg | 5 mg | 7.5 mg |
|---|---|---|---|---|
| 1 mL | 10 mg/mL | 25 units | 50 units | 75 units |
| 2 mL | 5 mg/mL | 50 units | 100 units | 150 units |
| 3 mL | 3.333 mg/mL | 75 units | 150 units | 225 units |
Units are marks on a U-100 insulin syringe (1 mL = 100 units).
Tirzepatide calculator FAQ
- How much bacteriostatic water for a 10 mg tirzepatide vial?
- 2 mL gives 5 mg/mL, so a 2.5 mg dose is 0.5 mL — the 50-unit mark on a U-100 syringe. 1 mL gives 10 mg/mL and a 25-unit draw.
- How many doses are in a 10 mg tirzepatide vial?
- At 2.5 mg per week that is 4 doses; at 5 mg it is 2.
- How do you calculate a peptide dose after reconstitution?
- Divide the peptide in the vial (mg) by the bacteriostatic water you added (mL) to get mg/mL. Then divide your dose by that concentration to get the volume to draw, and multiply by 100 for the mark on a U-100 insulin syringe.
- Does this calculator give medical advice?
- No. It is arithmetic only. It does not suggest, endorse or recommend any compound or dose. Talk to a licensed clinician before using any peptide.
Keep the numbers instead of redoing them
Pepprep saves your Tirzepatide vials, tracks how much is left as you log doses and shows cost per dose over time — free, and it syncs across your devices.
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Pepprep is a tracking and arithmetic tool. It does not prescribe, diagnose or recommend any compound or dose. See the medical disclaimer.