Enter your vial strength, how much bacteriostatic water you plan to add, and the amount you are working from. The calculator returns the exact number of units to draw on a U-100 insulin syringe.
The total milligrams printed on your vial label.
Maximum 3 ml. The vials themselves only hold 3 ml.
Whatever amount you are working from. This tool converts it, it does not suggest it.
This calculator does arithmetic only. It converts a vial strength and a water volume into syringe markings. It does not recommend how much to use, how often, or for how long. All products are sold as research chemicals for laboratory and research use only, and are not for human or veterinary consumption.
How to read the result
A U-100 insulin syringe is marked in units, not millilitres. One hundred units is 1 ml, so a single unit mark is 0.01 ml. The calculator converts between the two for you.
Concentration is how many milligrams of peptide sit in each millilitre of liquid once mixed. Per single unit mark is what one smallest marking on the syringe is worth. Draws per vial is how many times you can take that amount before the vial is empty.
Adding more water never gives you more peptide. The vial always holds the same total. More water only spreads it across a larger volume, so each marking measures less, which makes small amounts easier to draw accurately. Our vials hold 3 ml, so the calculator will not let you go past that.