Medicated Feed Calculators


These calculators were developed to assist you in calculating appropriate approved levels of drug in animal feed. A specific situation that a particular calculator is intended to address is explained in the purpose/example section in each calculator.  The calculators include the U.S. and where appropriate the metric system of units.

Although every effort has been made to ensure proper functioning of these calculators in your personal non-commercial use, we cannot guarantee that they will always provide you with an accurate result.

All calculators are provided in Excel (.xls) format.

  1. Unit Converter
  2. Monensin TMR
  3. Drug on Dry Matter Basis
  4. Drug Intake: from mg per lb to per ton
  5. Drug Intake: from mg per head per day to g per ton
AAFCO Headquarters Office
1800 S. Oak Street, Suite 100, Champaign, IL 61820-6974
Phone: 217-356-4221 --- Fax: 217-398-4119
Copyright 2022 by The Association of American Feed Control Officials