Retatrutide peptide calculator

Reta searches bounce between milligrams and syringe units. This page does that conversion for the vial you have, including the 20-unit questions.

Calculator by The Peptide App peptide calculator

Milligrams to units

People ask how many milligrams is 20 units of retatrutide. Units are a syringe mark. Milligrams come from concentration, and concentration comes from vial milligrams divided by BAC milliliters. Without those two numbers, 20 units is an empty figure.

Worked example (20 mg vial)

Vial: 20 mg. BAC water: 2 mL. Concentration: 10 mg/mL.

20 units on a U-100 syringe is 0.20 mL, which is 2 mg at that dilution.

The same 20 units on a 20 mg vial mixed with 4 mL (5 mg/mL) is 1 mg. If a screenshot of units does not include the water volume, it is not usable.

What this will not do

It will not pick a dose. It will not convert a pen. It will not guess a vial size from a photo. Put the printed milligrams in, then the water you added.

The mix math is the start. The Peptide App keeps the vial, leftover volume, and dose reminders from getting messy after that. 30-day free trial. We do not sell peptides.