How many units? Check your syringe math.
Enter your vial amount, the water you added and the amount to measure. See units, mL and mcg together, with every step shown.
Enter your numbers
Your result
Enter all 3 numbers to see units, mL and mcg together.
A unit is not a milligram. Units are lines on the syringe, and they measure liquid: 10 units is 0.1 mL. How much peptide is in it depends on your mix.
Before you draw
Five quick checks every time. If any number is unclear, stop. Do not guess.
- Use a new, sterile syringe every time. Never reuse needles or syringes.
- Wipe the rubber stopper with a fresh alcohol swab and let it air-dry.
- Use a U-100 insulin syringe. The units on this page only work on that scale.
- Match the vial label: the right product, its amount and the water you added.
- Look at the liquid. If you see particles, cloudiness or a color change you did not expect, do not use it.
When to get help
Emergency: Call 911 or your local emergency number now for trouble breathing, wheezing, or a swollen face, lips, tongue or throat. Do the same for hives away from the injection site, severe dizziness or fainting.
Today: Contact a doctor today for spreading redness, growing swelling or pain, pus, red streaks, or a fever or chills.
Watch how the injection site changes over time.
- Common Reactions: A small bump, a pink or red mark, mild swelling, itching, soreness or bruising can happen after an injection. If it stays near the site and gets smaller, less red or less sore over time, that is usually reassuring.
- Get it checked today. Contact a doctor today if redness spreads, or heat, swelling or pain keeps growing. The same goes for a lump that keeps growing or does not go away, pus or red streaks, or a fever, chills or feeling sick all over.
- Emergency. Call 911 or your local emergency number now if you have hives away from the injection site, or swelling of the face, lips, tongue or throat. Do the same for trouble breathing, wheezing, severe dizziness or fainting.
Turning an amount into units, how much water, units versus mg, supplies and what this tool won't choose.
How do I turn my amount into units?
Divide your amount by the concentration to get mL. Then multiply mL by 100 for units on a U-100 syringe. The calculator above shows each step with your own numbers.
How much water should I add?
This tool does not choose that. Water changes how strong the mix is, not how much peptide is in the vial. Follow your product's instructions, then check the math here.
Is a unit the same as a milligram?
No. A unit is a line on the syringe and measures liquid. On a U-100 syringe, 100 units is 1 mL. How many mg or mcg that holds depends on the mix.
What do I need to measure it?
A new U-100 insulin syringe each time, alcohol swabs and a sharps container for used needles. Mixing also needs the liquid your product calls for and a separate mixing syringe. The Reconstitution Guide covers the full set.
Can this tell me how much to take?
No. This tool does not choose an amount. Our peptide pages show researched ranges to discuss with a doctor, not a prescription, and where each one comes from. Check any amount against your product's label, and with a doctor or pharmacist.