Work out what a reconstituted vial actually delivers: the concentration you end up with, the volume of one dose, and where that lands on a standard U-100 insulin syringe.
Dose calculator
Enter a vial strength, diluent volume, and desired dose to see the resulting concentration, dose volume, and units on a standard U-100 insulin syringe. Nothing entered here is saved, stored, or sent anywhere – the calculation runs only in your browser.
Nothing entered here is saved, stored, or sent anywhere. The calculation runs entirely in your browser and is discarded when you leave the page.
The arithmetic: concentration equals vial strength in milligrams divided by diluent volume in millilitres. Dose volume equals the dose in milligrams divided by that concentration. A U-100 syringe delivers 100 units per millilitre, so units equal dose volume in millilitres times 100. Some commonly advertised doses come out larger than a 1 mL syringe can hold; where that happens the calculator says so rather than printing a unit count the syringe cannot deliver.