Vial to Units

mg to units conversions

On a U-100 insulin syringe 100 units is 1 mL. Units measure volume and milligrams measure amount, so converting between them needs the concentration of the vial. Enter yours, or pick a chart.

mg
mL

Enter the vial size and the water you added.

Arithmetic only. This tool does not recommend a dose; use the one your prescriber gave you.

mg to units

A milligram amount converted to syringe units at each concentration.

mcg to units

The same conversion for amounts written in micrograms.

Units to mg

How much a given syringe marking holds at each concentration.

Units to mL

Syringe markings as a volume. These do not depend on the vial.

mL to units

A volume as a marking on a U-100 syringe.

Reference charts

Liquid vials labelled in mg/mL, micrograms and milligrams, and vials labelled in IU.

By peptide

Calculators with vial-size presets and a concentration chart for one compound: all calculators by peptide.