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How many units on a U-100 insulin syringe is a 40 mg dose at 3.33 mg/mL?

Asked 17 Jun 2026Modified 43 days agoViewed 1.1k times
5

Numbers first: a U-100 insulin syringe · 40 mg · 3.33 mg/mL.

This should be a straightforward calculation and I keep getting two different answers.

The numbers are arbitrary; the method is what I am after.

Can someone walk through the arithmetic step by step?

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askedforty_units14k1717 Jun 2026

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