Retatrutide calculator

Enter your Retatrutide vial size, the water amount you added and your dose; you'll see the units to draw with a U-100 insulin syringe.

mg
mL
Dose unit
Your syringe
0102030405060708090100

Answer the three questions to see the units to draw, marked on this scale.

Use this for reference only. Your dose is set by your prescriber or the product label; we only convert that dose into units.

Vial sizes available for sale
10 mg, 15 mg, 20 mg, 30 mg, 48 mg or 60 mg
status of approval
It is not FDA-approved.
Example: 2 mL mixed with 10 mg
5 mg per mL

How Retatrutide math works

To get the strength, divide the amount in the vial by the water. When a 10 mg vial contains 2 mL of water, each mL contains 5 mg. First divide your dose by that strength to find the mL, then multiply by 100 for U-100 syringe units.

From that vial, 100 mcg equals 0.02 mL or 2 units.

A quick look at Retatrutide units

Your dose10 mg vial + 2 mL15 mg vial + 3 mL20 mg vial + 2 mL30 mg vial + 3 mL48 mg vial + 3 mL
400 mcg8 units8 units4 units4 units2.5 units
500 mcg10 units10 units5 units5 units3.1 units
750 mcg15 units15 units7.5 units7.5 units4.7 units
1 mg20 units20 units10 units10 units6.2 units
1.5 mg30 units30 units15 units15 units9.4 units
2 mg40 units40 units20 units20 units12.5 units
2.5 mg50 units50 units25 units25 units15.6 units
3 mg60 units60 units30 units30 units18.8 units
4 mg80 units80 units40 units40 units25 units

Every cell tells you how far to draw on a U-100 syringe, based on your vial and water.

Is Retatrutide FDA-approved?

It has no FDA-approved use in people; it is sold as a research chemical. Since no FDA label exists, there is no official dose. We convert only the dose you already have.

Questions people often ask

For a 10 mg Retatrutide vial, how much water do I add?

You choose the water amount; it only changes the strength of each mL. Adding 2 mL gives 5 mg per mL; adding more water means each unit holds less and small doses become easier to measure.

How many units equal 1 mg of Retatrutide?

The answer depends on your mix's strength. At 5 mg/mL, 20 units equal 1 mg. Put your vial and water details into the calculator to see the number.

How long does mixed Retatrutide last?

Your product or prescription tells you how to store it; follow that line. Per CDC guidance, use bacteriostatic water within 28 days after the first needle.