Convert Syringe Units to Milliliters
Syringe measurements can feel confusing when one source lists an amount in milliliters and another refers to syringe units. This simple converter helps translate between the two measurements using the markings found on a standard U-100 insulin syringe.
Syringe Unit Converter
Enter a measurement below to convert between syringe units and milliliters using a standard U-100 syringe.
What Do Syringe Units Measure?
The numbered markings on a syringe help show how much liquid is being drawn into it. On a U-100 syringe, every 10 units represents 0.1 milliliter of liquid.
These markings measure liquid volume only. They do not tell you how many milligrams or micrograms of a substance are in that liquid. That depends on the concentration of the prepared solution.
Units Are Not the Same as a Dose
It is easy to assume that syringe units represent the amount of peptide, but they only describe how much liquid is inside the syringe. The same number of syringe units can contain different amounts depending on how the solution was prepared.
For example, 10 units will always equal 0.1 mL on a U-100 syringe. However, the amount contained within that 0.1 mL will depend on the concentration of the solution.
Confirm the Syringe Type
This converter should only be used with a syringe clearly marked U-100. Not every syringe uses the same scale, and syringe sizes can also have different line spacing.
Before using the converter, look at the syringe packaging and barrel to confirm its type, total capacity and individual markings. Never assume that every line represents one unit.
A Simple Volume Reference
This tool is meant to make syringe markings easier to read and compare. It converts between two measurements of liquid volume, but it does not calculate concentration, reconstitution amounts or dosing.
For calculations involving vial strength, added liquid and concentration, use the Peptide Reconstitution Calculator.
Important Information
This calculator is provided for general educational and reference purposes only. It is not medical advice and should not be used to determine a treatment or dosage. Always verify measurements, syringe markings and instructions with a qualified medical professional.