Calculator
10 mg vial: strength, syringe marks and draws
A 10 mg vial does not have one strength. It has a different strength for every amount of water you add. This page is the calculator with 10 mg already filled in, plus a table of what each water amount turns a 10 mg vial into.
Your numbers
Look at the label. It says a number in mg (milligrams). Tap a common size or type your own.
In mL (milliliters). Use the amount you actually put in. We do not suggest an amount; your label or doctor does.
The amount of peptide you want to pull into the syringe. Pick mcg or mg. This is your number, not ours.
1 mg = 1,000 mcg. Some labels write mcg as µg. Same thing.
Printed on the syringe. Most insulin syringes are "U-100": 100 units equals 1 mL.
This calculator only does math on the numbers you type. It does not tell you how much to use, how often, or how much water to add. Those are questions for a licensed doctor. Why we draw that line.
Your answer
Show me the math
Nothing you type leaves your phone or computer. The rule we use: 100 units = 1 mL on a U-100 syringe (ISO 8537).
The table below converts amounts. It does not suggest one. Which amount belongs in the syringe is a question for a licensed doctor, and how much water to add comes from your label or your doctor. Why we draw that line.
What water does to a 10 mg vial
Read down the left for the water you added. Read across for the amount you want in one draw. The cell is the mark on a U-100 syringe.
| Water you added | 0.1 mg 100 mcg | 0.25 mg 250 mcg | 0.5 mg 500 mcg | 1 mg 1,000 mcg | 2 mg 2,000 mcg |
|---|---|---|---|---|---|
| 0.5 mL 20 mg/mL | 0.5 units 0.005 mL | 1.25 units 0.0125 mL | 2.5 units 0.025 mL | 5 units 0.05 mL | 10 units 0.1 mL |
| 1 mL 10 mg/mL | 1 units 0.01 mL | 2.5 units 0.025 mL | 5 units 0.05 mL | 10 units 0.1 mL | 20 units 0.2 mL |
| 2 mL 5 mg/mL | 2 units 0.02 mL | 5 units 0.05 mL | 10 units 0.1 mL | 20 units 0.2 mL | 40 units 0.4 mL |
| 3 mL 3.3333 mg/mL | 3 units 0.03 mL | 7.5 units 0.075 mL | 15 units 0.15 mL | 30 units 0.3 mL | 60 units 0.6 mL |
| 5 mL 2 mg/mL | 5 units 0.05 mL | 12.5 units 0.125 mL | 25 units 0.25 mL | 50 units 0.5 mL | 100 units 1 mL |
Every cell is (amount in mg / (vial mg / water mL)) x 100, the same arithmetic the calculator above runs. Cells marked past the end need a bigger syringe or a different mix, and the mix is set by the water you chose.
The math, worked once
10 / 2 = 5 mg/mL. 0.25 / 5 = 0.05 mL. 0.05 x 100 = 5 units. 10 / 0.25 = 40 draws.
Fill the syringe to the 5 mark. The vial holds 40 draws.
Other vial sizes
1 mg2 mg5 mg15 mg20 mg30 mg50 mg
Not sure what mg, mL and units mean?
Read how mixing works