Weight-based dosing scales the dose proportionally to the subject's body mass. Instead of a flat dose for everyone, you use a rate (e.g., 1 mcg per kg of bodyweight), which means heavier subjects receive more and lighter subjects receive less. This approach is common in research to normalize dosing across different body sizes.

These are just different scales of the same concept. mcg/kg (micrograms per kilogram) is used for highly potent compounds where doses are very small — like GLP-1 peptides or BPC-157. mg/kg (milligrams per kilogram) is used for compounds requiring larger doses. 1 mg/kg = 1,000 mcg/kg. The tool handles both automatically.

Select "lbs" from the weight unit dropdown — the tool converts automatically. 1 kg = 2.2046 lbs. The conversion display below the weight field always shows both units so you can verify.

Use the preset buttons above — they load published research dose rates for each compound. As a general reference: BPC-157 is often studied at 1–10 mcg/kg, TB-500 at 2–4 mg per injection (not strictly weight-based), Semaglutide at 0.25–2.4 mg weekly (also often flat-dosed), and Ipamorelin at 1–3 mcg/kg per injection. Always verify against current research literature.

This is the total quantity of compound needed for the full protocol duration you entered. It helps you calculate how many vials to order before starting. Use the Vial Yield Calculator to translate this into a specific vial count.