Free tool

Cost per mg calculator

Enter what you paid and the vial's content, and we'll tell you the cost per mg (and per dose).

Frequently asked questions

What currency is the calculation in?

Whatever you enter — the calculator just divides the price by the vial's content, without converting currencies.

Why don't all peptides show up in the selector?

We only include ones dosed in mg. Ones dosed in IU (like growth hormone) don't share the same cost unit, so they don't apply here.

This tool is for informational and educational purposes only. It is not medical advice and does not replace a healthcare professional. Peptides and GLP-1 medications should be used under medical supervision. Testosterone replacement therapy (TRT) is a prescription hormonal treatment: it should only be started after lab-confirmed deficiency and with ongoing medical follow-up, never on your own. Always consult your doctor before starting or adjusting any protocol.

Keep your whole protocol in one place

PeptiBrain stores your vials, calculates your doses, reminds you of every shot, and tracks your progress. Start free.

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PeptiBrain is a personal tracking diary. It is not medical advice and does not replace a healthcare professional, and it does not recommend doses: it records what you decide. Testosterone replacement therapy (TRT) is a prescription hormonal treatment that requires diagnosis and ongoing medical follow-up; never start or adjust it on your own. Always consult a professional before making decisions about your health.