20 units to mg
20 units on a U-100 insulin syringe is 0.2 mL. That holds 1 mg when the vial is 5 mg/mL and 2 mg at 10 mg/mL. mg = units ÷ 100 × mg/mL.
20 units in mg, by concentration
| Concentration | Volume | 20 units = |
|---|---|---|
| 1 mg/mL · 5 mg vial + 5 mL | 0.2 mL | 0.2 mg · 200 mcg |
| 2 mg/mL · 10 mg vial + 5 mL | 0.2 mL | 0.4 mg · 400 mcg |
| 2.5 mg/mL · 5 mg vial + 2 mL | 0.2 mL | 0.5 mg · 500 mcg |
| 3 mg/mL · 15 mg vial + 5 mL | 0.2 mL | 0.6 mg · 600 mcg |
| 5 mg/mL · 10 mg vial + 2 mL | 0.2 mL | 1 mg |
| 7.5 mg/mL · 15 mg vial + 2 mL | 0.2 mL | 1.5 mg |
| 10 mg/mL · 10 mg vial + 1 mL | 0.2 mL | 2 mg |
| 15 mg/mL · 30 mg vial + 2 mL | 0.2 mL | 3 mg |
| 20 mg/mL · 20 mg vial + 1 mL | 0.2 mL | 4 mg |
Calculate for your vial
The calculator is set to work backwards from 20 units. Add your vial size and the water added.
Enter the vial size and the water you added.
Arithmetic only. This tool does not recommend a dose; use the one your prescriber gave you.
Questions
How many mg is 20 units?
20 units on a U-100 syringe is 0.2 mL. Multiply that by the concentration: at 5 mg/mL it is 1 mg, at 10 mg/mL it is 2 mg.
How many mL is 20 units?
0.2 mL. On a U-100 insulin syringe 100 units is 1 mL.
How many mcg is 20 units?
Work out the mg first, then multiply by 1,000. At 5 mg/mL, 20 units is 1 mg, which is 1,000 mcg.
How do I find the concentration of my vial?
Divide the mg printed on the vial by the mL of water that was added. A 10 mg vial with 2 mL added is 5 mg/mL. If the vial was dispensed as a liquid, the mg/mL is printed on the label.
Nearby conversions
- 10 units to mg
- 12 units to mg
- 15 units to mg
- 25 units to mg
- 30 units to mg
- 35 units to mg
- 6 mg to units
- 50 mcg to units
- 20 units to mL
- 25 units to mL
- 0.2 mL to units
- 0.25 mL to units
- All conversions