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

These are different scales of the same concept. mcg/kg (micrograms per kilogram) is used for highly potent compounds where doses are small — like BPC-157, Ipamorelin, or Sermorelin. mg/kg (milligrams per kilogram) is for compounds requiring larger doses. 1 mg/kg = 1,000 mcg/kg.

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.

Use the preset buttons — they load published research dose rates. As a reference: BPC-157 is often studied at 1–10 mcg/kg, TB-500 at 0.025 mg/kg, Ipamorelin at 1–3 mcg/kg, and Sermorelin at 4 mcg/kg. Always verify against current research literature.

The total quantity of compound needed for the full protocol duration. Use this to calculate how many vials to order. Cross-reference with the Vial Yield Calculator for exact vial counts.