Calorie Calculator Pet Weight Unit Pounds (lbs) Kilograms (kg) Spayed, Neutered, or Intact Spayed/Neutered Intact Current Calorie Intake ? Enter the initial daily intake for the patient. If the daily intake is unknown, auto-calculate will estimate the initial daily caloric intake. Close Any daily calorie recommendation is a starting recommendation. Monitor body weight and adjust as needed. Body Condition Score BCS Chart ? 5 BCS: 5 Use 1–9. This calculator is intended for pets that are not underweight. Close Ideal Pet Weight ? A variety of factors affect ideal weight (health conditions, breed, age, etc.). If unknown, leave blank to estimate from BCS. Close CALCULATE NOW Formulas used RER = 70 × body weight (kg)0.75 MER (for BCS 4 & 5) Intact Dog = 1.6 × RER Neutered Dog = 1.4 × RER Weight Management Energy Recommendation Adult Dog = 0.8 × RER IDEAL WEIGHT ... % ABOVE IDEAL WEIGHT ... ESTIMATED INITIAL DAILY CALORIES ... Close