Retatrutide Calculator
Enter your Retatrutide vial size, the water you add and your dose to get the units to draw on a U-100 syringe. The units chart and water table below cover 5, 10, 20, 30 mg vials.
How many units is each Retatrutide dose?
Units on a U-100 insulin syringe for common amounts, with 2 mL of bacteriostatic water in the vial. With a different water amount, use the calculator above.
| Dose (mg) | 5 mg vial + 2 mL | 10 mg vial + 2 mL | 20 mg vial + 2 mL | 30 mg vial + 2 mL |
|---|---|---|---|---|
| 0.5 mg | 20 units 0.2 mL | 10 units 0.1 mL | 5 units 0.05 mL | 3.3 units 0.033 mL |
| 1 mg | 40 units 0.4 mL | 20 units 0.2 mL | 10 units 0.1 mL | 6.7 units 0.067 mL |
| 2 mg | 80 units 0.8 mL | 40 units 0.4 mL | 20 units 0.2 mL | 13.3 units 0.133 mL |
| 3 mg | 120 units* 1.2 mL | 60 units 0.6 mL | 30 units 0.3 mL | 20 units 0.2 mL |
| 4 mg | 160 units* 1.6 mL | 80 units 0.8 mL | 40 units 0.4 mL | 26.7 units 0.267 mL |
| 6 mg | 240 units* 2.4 mL | 120 units* 1.2 mL | 60 units 0.6 mL | 40 units 0.4 mL |
| 8 mg | 320 units* 3.2 mL | 160 units* 1.6 mL | 80 units 0.8 mL | 53.3 units 0.533 mL |
* More than one 1 mL syringe. Use more water or split the draw.
Retatrutide is an investigational drug and isn't FDA-approved, so there's no approved dosing to list.
How much bac water for Retatrutide?
Water only changes how much liquid each dose takes up, not how much Retatrutide is in it. To land a 2 mg dose on a round number of units, add:
| Vial | So 2 mg = 10 units | So 2 mg = 20 units |
|---|---|---|
| 5 mg | 0.25 mL | 0.5 mL |
| 10 mg | 0.5 mL | 1 mL |
| 20 mg | 1 mL | 2 mL |
| 30 mg | 1.5 mL | 3 mL |
How do you reconstitute Retatrutide?
- Concentration: 10 mg ÷ 2 mL = 5 mg/mL (50 mcg per unit).
- Volume to draw: 2 mg ÷ 5 mg/mL = 0.4 mL.
- Syringe units: 0.4 mL × 100 = 40 units on a U-100 syringe.
Example numbers only. They come from the default vial, water and amount above, not a recommendation.
What else do people ask about Retatrutide?
How many units is 2 mg of Retatrutide?
It depends on how much water is in the vial. With a 10 mg vial and 2 mL of water, 2 mg is 40 units (0.4 mL) on a U-100 syringe. Change the vial or water amount above to see your number.
How much bacteriostatic water do I add to a Retatrutide vial?
There's no single right amount. More water makes each unit weaker and the draw bigger, which is easier to measure. Less water makes the draw smaller. Many people pick an amount that puts their dose on a round number of units. The "Units → water to add" tab and the table above work this out.
How many doses are in a 10 mg Retatrutide vial?
At 2 mg per dose, a 10 mg vial holds 5 doses. The amount of water doesn't change this.
Does this page recommend a Retatrutide dose?
No. This page only converts amounts you enter into syringe units. Ask a licensed clinician about whether and how to use Retatrutide.