20 mcg to Units (U-100 Insulin Syringe)
20 mcg = 0.02 mg. Units depend on concentration: with a 2 mg vial mixed in 2 mL of bacteriostatic water, 20 mcg is 2 units (0.02 mL) on a U-100 syringe.
To draw 20 mcg, fill to
2units= 0.02 mL
20 mcg to Units chart
Units to draw for 20 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 | 1 u | 2 u | 3 u |
| 5 mg | — | — | 1.2 u |
| 10 mg | — | — | — |
| 15 mg | — | — | — |
| 20 mg | — | — | — |
| 30 mg | — | — | — |
FAQ
How many units is 20 mcg?
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20 mcg = 0.02 mg. Units depend on concentration: with a 2 mg vial mixed in 2 mL of bacteriostatic water, 20 mcg is 2 units (0.02 mL) on a U-100 syringe.
How many units is 20 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 0.8 units, a 10 mg vial gives 0.4 units. A stronger vial means fewer units for the same dose.
How do I calculate 20 mcg in units myself?
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Concentration = vial mg × 1,000 ÷ water mL (in mcg per mL). Volume = 20 mcg ÷ concentration. Units = volume × 100 on a U-100 syringe.