500 mcg to Units (U-100 Insulin Syringe)
500 mcg = 0.5 mg. Units depend on concentration: with a 5 mg vial mixed in 2 mL of bacteriostatic water, 500 mcg is 20 units (0.2 mL) on a U-100 syringe.
To draw 500 mcg, fill to
20units= 0.2 mL
500 mcg to Units chart
Units to draw for 500 mcg on a U-100 syringe, by vial size and water volume. "—" means the dose does not fit in a 1 mL syringe or is too small to measure.
| Vial | 1 mL water | 2 mL water | 3 mL water |
|---|---|---|---|
| 2 mg | 25 u | 50 u | 75 u |
| 5 mg | 10 u | 20 u | 30 u |
| 10 mg | 5 u | 10 u | 15 u |
| 15 mg | 3.3 u | 6.7 u | 10 u |
| 20 mg | 2.5 u | 5 u | 7.5 u |
| 30 mg | 1.7 u | 3.3 u | 5 u |
Calculators that use 500 mcg
FAQ
How many units is 500 mcg?
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500 mcg = 0.5 mg. Units depend on concentration: with a 5 mg vial mixed in 2 mL of bacteriostatic water, 500 mcg is 20 units (0.2 mL) on a U-100 syringe.
How many units is 500 mcg with a 5 mg vial vs a 10 mg vial?
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Mixed with 2 mL of water: a 5 mg vial gives 20 units, a 10 mg vial gives 10 units. A stronger vial means fewer units for the same dose.
How do I calculate 500 mcg in units myself?
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Concentration = vial mg × 1,000 ÷ water mL (in mcg per mL). Volume = 500 mcg ÷ concentration. Units = volume × 100 on a U-100 syringe.