How many units is 500 mcg from a 5 mg vial with 2 mL of water?
5 mg ÷ 2 mL = 2.5 mg/mL (2500 mcg/mL). 500 mcg ÷ 2500 mcg/mL = 0.2 mL. On a U-100 syringe that is 20 units (U-50: 10, U-40: 8). The vial holds 10 draws of that size.
The math
Concentration = 5 mg ÷ 2 mL = 2.5 mg/mL Volume = 500 mcg ÷ 2500 mcg/mL = 0.2 mL Units (U-100) = 0.2 × 100 = 20
Math only, not medical advice. This page converts numbers; it does not recommend any compound or amount.
Draw to
20 units
= 0.2 mL · concentration 2.5 mg/mL (2500 mcg/mL) · 10 draws per vial
Concentration = 5 mg ÷ 2 mL = 2.5 mg/mL Volume = 500 mcg ÷ 2500 mcg/mL = 0.2 mL Units = 0.2 mL × 100 (U-100) = 20 units
Math only, not medical advice. Verify every number yourself.
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