30 mg vial, 3 mL water, 10 mg/mL.
30 milligrams divided by 3 millilitres of bacteriostatic water gives 10 mg per mL. Every unit reading on this page follows from that one number.
The direct answer
A 30 mg vial reconstituted with 3 mL of bacteriostatic water is 10 mg/mL. One unit on a U-100 syringe is 0.01 mL, so one unit of this solution contains 0.1 mg, and 10 units contains 1 mg.
30 mg ÷ 3 mL = 10 mg/mL
A 30 mg vial and 3 mL of water is one of the few combinations that lands on a round 10 mg/mL. This page exists because that exact combination is searched for: "when 30mg of peptide are reconstituted with 3ml of water how many".
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 10 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 | 0.01 mL | 1 u |
| 0.25 mg | 250 mcg | 0.025 mL | 2.5 u |
| 0.5 mg | 500 mcg | 0.05 mL | 5 u |
| 0.75 mg | 750 mcg | 0.075 mL | 7.5 u |
| 1 mg | 1000 mcg | 0.1 mL | 10 u |
| 1.5 mg | 1500 mcg | 0.15 mL | 15 u |
| 2 mg | 2000 mcg | 0.2 mL | 20 u |
| 2.5 mg | 2500 mcg | 0.25 mL | 25 u |
| 3 mg | 3000 mcg | 0.3 mL | 30 u |
| 4 mg | 4000 mcg | 0.4 mL | 40 u |
| 5 mg | 5000 mcg | 0.5 mL | 50 u |
1 mg on the barrel
30 mg in 3 mL = 10 mg/mL → 1 mg dose = 0.1 mL = 10 units
Questions people actually type
What concentration is a 30 mg vial in 3 mL?
30 mg divided by 3 mL is 10 mg/mL. On a U-100 syringe one unit is 0.01 mL, so a single unit of this solution holds 0.1 mg.
How many units is 1 mg from a 30 mg vial in 3 mL?
1 mg divided by 10 mg/mL is 0.1 mL, which reads 10 units on a U-100 syringe.
Does the 30 mg vial still hold 30 mg after adding water?
Yes. The mass is fixed by the label. Adding 3 mL of bacteriostatic water changes only the concentration, to 10 mg/mL, and therefore only the unit reading for a given amount.
Related conversions
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