Tirzepatide 60 mg reconstituted with 2 mL
Concentration
30mg/mL
- Per insulin unit
- 300 mcg
- Solution in vial
- 200 u
- 15 mg draw
- 50 u
Math utility only — not medical advice. Not a recommended dose.
Units per dose at 30 mg/mL
Insulin syringes are graduated in hundredths of a millilitre, so units = mL × 100 on a U-100, U-50 or U-30 barrel alike.
| Dose | Volume | U-100 units | Fits | Doses per vial |
|---|---|---|---|---|
| 2.5 mg | 0.083 mL | 8.3 u | U-30 | 24 |
| 5 mg | 0.167 mL | 16.7 u | U-30 | 12 |
| 7.5 mg | 0.25 mL | 25 u | U-30 | 8 |
| 10 mg | 0.333 mL | 33.3 u | U-50 | 6 |
| 12.5 mg | 0.417 mL | 41.7 u | U-50 | 4 |
| 15 mg | 0.5 mL | 50 u | U-50 | 4 |
How this is calculated
1 · Concentration
60 mg ÷ 2 mL = 30 mg/mL
The peptide mass never changes — bacteriostatic water only sets how concentrated the solution is, and therefore how far the plunger travels.
2 · Volume for a 15 mg dose
15 mg ÷ 30 mg/mL = 0.5 mL
3 · Insulin units
0.5 mL × 100 = 50 units
Every unit on the barrel carries 300 mcg at this concentration, so misreading by one unit is a 300 mcg error.
See it on a real syringe
The interactive calculator draws this 30 mg/mL mix on a scaled U-100 barrel, shows when a draw lands exactly on a printed tick, and works backwards from a target dose to the water volume that makes it land cleanly.
Open the interactive calculator →Common questions
- How much bacteriostatic water for a 60 mg Tirzepatide vial?
- Adding 2 mL of bacteriostatic water to a 60 mg Tirzepatide vial yields 30 mg/mL — 300 mcg in every insulin unit. The reconstituted vial holds 200 units of solution in total.
- How many units is a 15 mg dose of Tirzepatide at 60 mg in 2 mL?
- 15 mg is 0.5 mL of this mix, which is 50 units on a U-100 insulin syringe (a U-50 barrel is enough).
- How many 15 mg doses does a 60 mg vial give?
- A 60 mg vial contains 4 full 15 mg doses. Using more or less bacteriostatic water changes the units you draw, never the number of doses in the vial.