Tirzepatide Reconstitution & Dosage Calculator
This free Tirzepatide calculator turns your vial size, the bacteriostatic water you add, and your target amount into a concentration, a draw volume, and the exact units on a U-100 insulin syringe. It covers the common 10 mg/mL and 20 mg/mL setups Tirzepatide research uses, in milligrams.
Quick summary
- Converts vial size (mg), bacteriostatic water (mL), and a milligram amount into concentration, draw volume, and U-100 units.
- Built around the common 10 mg/mL and 20 mg/mL Tirzepatide setups for 10, 15, 30, and 60 mg vials.
- Educational measurement tool only — it does not provide a titration schedule or recommend an amount.
Tirzepatide reconstitution calculator
Syringe
U-100 insulinPeptide in vial
Target amount
Bacteriostatic water
Email this result to yourself
What this Tirzepatide calculator does
This calculator does one job well: it turns your vial size, the amount of bacteriostatic water you add, and your target amount into a concentration (mg/mL), a draw volume (mL), and the matching units on a U-100 insulin syringe. Change any input and the result updates instantly.
Tirzepatide ships as a freeze-dried powder. Before it can be measured into a syringe it has to be reconstituted — dissolved in bacteriostatic water. How much water you add sets the concentration, and the concentration sets how many units each amount works out to. The presets above cover the most common Tirzepatide vial setups; use the custom fields for anything else.
How to use the Tirzepatide calculator
Pick your syringe
Choose the U-100 insulin syringe you'll draw with. Smaller syringes (0.3 mL / 30u) have finer lines, which helps when the draw is small.
Enter your vial and water
Set the milligrams in your Tirzepatide vial and the bacteriostatic water you added. Together these set the concentration.
Set your target amount
Toggle mg or mcg and pick (or type) the amount you're measuring for. The calculator does the conversion for you.
Read the draw
The result panel shows concentration, draw volume, and the exact U-100 units to pull, plus how many doses your vial contains.
Tirzepatide reconstitution math, explained
The math is short. Concentration = vial size ÷ bacteriostatic water. Draw volume = target amount ÷ concentration. Units = draw volume × 100 (a U-100 syringe reads 100 units per mL). The table below shows common Tirzepatide setups and the units for a 1 mg amount at each.
| Vial size | Bac water | Concentration | Units per 1 mg |
|---|---|---|---|
| 10 mg | 1.0 mL | 10 mg/mL | 10 units |
| 30 mg | 3.0 mL | 10 mg/mL | 10 units |
| 30 mg | 1.5 mL | 20 mg/mL | 5 units |
| 60 mg | 3.0 mL | 20 mg/mL | 5 units |
| 10 mg | 2.0 mL | 5 mg/mL | 20 units |
Tirzepatide amount-to-units reference
How common amounts convert to U-100 syringe units at two example concentrations. These are arithmetic conversions for reference, not a recommendation of any amount.
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 2.5 mg (2500 mcg) | 0.25 mL | 25 units |
| 5 mg (5000 mcg) | 0.5 mL | 50 units |
| 7.5 mg (7500 mcg) | 0.75 mL | 75 units |
| 10 mg (10000 mcg) | 1 mL | 100 units |
| 15 mg (15000 mcg) | 1.5 mL | 150 units |
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 2.5 mg (2500 mcg) | 0.125 mL | 12.5 units |
| 5 mg (5000 mcg) | 0.25 mL | 25 units |
| 7.5 mg (7500 mcg) | 0.375 mL | 37.5 units |
| 10 mg (10000 mcg) | 0.5 mL | 50 units |
| 15 mg (15000 mcg) | 0.75 mL | 75 units |
Mixing, color & storage tips
A clear solution
Tirzepatide reconstitutes to a clear, colorless liquid. Discard the vial if it is cloudy, discolored, or has particles.
Two common concentrations
Many setups target 10 mg/mL (e.g. 30 mg + 3 mL) or 20 mg/mL (e.g. 60 mg + 3 mL) because the milligram amounts land on clean unit marks. Pick the one that keeps your draws readable.
No titration schedule here
GLP-class research references discuss stepping amounts up over weeks. This calculator only converts whatever amount you enter into a draw — it does not build that schedule.
Storage
Refrigerate the reconstituted vial and keep it dark; use within a limited window. Keep the dry powder cold for longer storage and do not freeze a mixed vial.
Tirzepatide supplies checklist
A simple reconstitution shopping list. Confirm vial size and batch documentation before you buy.
Tirzepatide
- Batch COA on every vial
- Third-party purity tested
- U.S. fulfillment, discreet shipping
Tirzepatide — frequently asked questions
What does this Tirzepatide calculator tell me?
It converts your vial size, bacteriostatic water volume, and target amount into concentration (mg/mL), draw volume (mL), and U-100 syringe units.
Is the Tirzepatide reconstitution calculator free?
Yes — free, browser-based, no account.
How much bacteriostatic water for a 30 mg Tirzepatide vial?
A 30 mg vial with 3 mL makes 10 mg/mL; with 1.5 mL it makes 20 mg/mL. Both keep common milligram amounts on clean unit marks.
How many units is 5 mg of Tirzepatide?
At 10 mg/mL it is 50 units (0.5 mL). At 20 mg/mL it is 25 units. Units depend on your exact concentration.
Does this give a Tirzepatide dose or titration schedule?
No. It is a measurement tool only and does not recommend an amount or generate a schedule.
Is this medical advice?
No. This page and calculator are for education and research planning only. Products referenced are sold strictly as research chemicals and are not for human or veterinary use.
