17 mg vial, 2 mL water, 8.5 mg/mL.
17 milligrams divided by 2 millilitres of bacteriostatic water gives 8.5 mg per mL. Every unit reading on this page follows from that one number.
The direct answer
A 17 mg vial reconstituted with 2 mL of bacteriostatic water is 8.5 mg/mL. One unit on a U-100 syringe is 0.01 mL, so one unit of this solution contains 0.085 mg, and 10 units contains 0.85 mg.
17 mg ÷ 2 mL = 8.5 mg/mL
The query carries a 500 mcg amount alongside the vial, so that row is called out below. This page exists because that exact combination is searched for: "17mg/500mcg/ml (2ml)".
This page is arithmetic only. It converts numbers you already have from the vial in front of you and the prescription you were given. It does not tell you how much water to add, how much to take, or how often. Those are medical decisions for a licensed clinician who knows your history.
Amount to units at 8.5 mg/mL
Every row is computed for this concentration only. Rows that would exceed a 1 mL U-100 barrel are left out, because they cannot be drawn in one go.
| Amount | In mcg | Volume | U-100 units |
|---|---|---|---|
| 0.1 mg | 100 mcg | 0.012 mL | 1.2 u |
| 0.25 mg | 250 mcg | 0.029 mL | 2.9 u |
| 0.5 mg | 500 mcg | 0.059 mL | 5.9 u |
| 0.75 mg | 750 mcg | 0.088 mL | 8.8 u |
| 1 mg | 1000 mcg | 0.118 mL | 11.8 u |
| 1.5 mg | 1500 mcg | 0.176 mL | 17.6 u |
| 2 mg | 2000 mcg | 0.235 mL | 23.5 u |
| 2.5 mg | 2500 mcg | 0.294 mL | 29.4 u |
| 3 mg | 3000 mcg | 0.353 mL | 35.3 u |
| 4 mg | 4000 mcg | 0.471 mL | 47.1 u |
| 5 mg | 5000 mcg | 0.588 mL | 58.8 u |
1 mg on the barrel
17 mg in 2 mL = 8.5 mg/mL → 1 mg dose = 0.118 mL = 11.8 units
Questions people actually type
What concentration is a 17 mg vial in 2 mL?
17 mg divided by 2 mL is 8.5 mg/mL. On a U-100 syringe one unit is 0.01 mL, so a single unit of this solution holds 0.085 mg.
How many units is 1 mg from a 17 mg vial in 2 mL?
1 mg divided by 8.5 mg/mL is 0.118 mL, which reads 11.8 units on a U-100 syringe.
Does the 17 mg vial still hold 17 mg after adding water?
Yes. The mass is fixed by the label. Adding 2 mL of bacteriostatic water changes only the concentration, to 8.5 mg/mL, and therefore only the unit reading for a given amount.
Related conversions
Worked vial cases
Run your own numbers
The free web calculator takes your vial, your water, and your amount, and shows every step of the conversion. Nothing is stored and no account is needed.