100 mcg to Units (U-100 Insulin Syringe)
100 mcg = 0.1 mg. Units depend on concentration: with a 5 mg vial mixed in 2 mL of bacteriostatic water, 100 mcg is 4 units (0.04 mL) on a U-100 syringe.
To draw 100 mcg, fill to
4units= 0.04 mL
100 mcg to Units chart
Units to draw for 100 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 | 5 u | 10 u | 15 u |
| 5 mg | 2 u | 4 u | 6 u |
| 10 mg | 1 u | 2 u | 3 u |
| 15 mg | — | 1.3 u | 2 u |
| 20 mg | — | 1 u | 1.5 u |
| 30 mg | — | — | 1 u |
Calculators that use 100 mcg
FAQ
How many units is 100 mcg?
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100 mcg = 0.1 mg. Units depend on concentration: with a 5 mg vial mixed in 2 mL of bacteriostatic water, 100 mcg is 4 units (0.04 mL) on a U-100 syringe.
How many units is 100 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 4 units, a 10 mg vial gives 2 units. A stronger vial means fewer units for the same dose.
How do I calculate 100 mcg in units myself?
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Concentration = vial mg × 1,000 ÷ water mL (in mcg per mL). Volume = 100 mcg ÷ concentration. Units = volume × 100 on a U-100 syringe.