Work out what a vial becomes once it is mixed, and where that lands on a U‑100 insulin syringe.
This is arithmetic, not advice. It converts numbers you enter and never suggests an amount to take. What this tool is and is not ↓
Draw to
Enter your numbers to see where that lands.
There is no secret to it. A U‑100 syringe is marked so that 100 units is one millilitre, which makes one unit exactly 0.01 ml. Everything else follows from that.
Worked through with the numbers this page opens on: a 5 mg vial is 5,000 mcg. Add 2 ml of bacteriostatic water and it becomes 2,500 mcg per ml, or 25 mcg in every unit. An amount of 250 mcg is therefore 10 units — a tenth of a millilitre.
The water volume never changes how much peptide you have. It only changes how far along the barrel a given amount sits, which is why a small amount out of a thin mix can land below the first marking and stop being measurable.
It is a unit converter. You supply the vial size, the water volume and the amount you are working with; it returns the same amount expressed in syringe units. It has no opinion about any of those numbers and it cannot tell whether they are sensible.
It is not dosing guidance. Peps by Dave does not provide dosing, administration or protocol guidance, and nothing on this page suggests an amount to use. That is why there are no shortcut buttons beside the amount field: the vial and water shortcuts describe products you can buy, whereas a pre‑filled amount would read as a recommendation, which this is not.
We do not sell, supply, source, import or ship peptides. Many peptides are not approved for human use and are sold for laboratory research only. Check the law where you live, and talk to a qualified clinician about anything you intend to do with your own body.
Arithmetic can be right and still be the wrong thing to act on. Read the Terms of Service before relying on anything here.