Veterinary Clinical Calculators
Evidence-informed calculators and reference tools developed to support nutrition, weight assessment, and client communication in veterinary practice.
Core calculators
These calculators are currently available and used most frequently in clinical obesity and nutrition workflows.
Daily Energy Needs (DER / MER)
Estimate daily caloric requirements using standard veterinary energy equations and practical activity adjustments.
STEP Weight Loss Calculator
Build a structured weight-loss plan with target calories and stepwise guidance to support client adherence.
Calculators are provided as clinical support tools and educational references. Outputs are estimates and should be interpreted in the context of individual patient assessment and professional judgment. APOP does not provide diagnostic or treatment directives through these tools.
Tools & Resources
Other Calculators
Quick links to the most-used calculators and tools. These are helpful for client education, daily feeding decisions, and understanding weight and body condition.
For Pet Owners
Pet Owners
Dog Daily Feeding Calculator
Estimate daily calories and portions for dogs based on an ideal body condition.
Pet Owners
Cat Daily Feeding Calculator
Estimate daily calories and portions for cats based on an ideal body condition.
Pet Owners
Dog–Human Weight Comparison
Translate your dog’s weight into a human comparison to understand healthy ranges and body condition.
Pet Owners
Cat–Human Weight Comparison
Translate your cat’s weight into a human comparison and learn what it suggests about body condition.
Pet Owners
Dog Weight Range Estimator
Compare your dog’s weight to typical ranges for their breed and size.
Pet Owners
Cat Weight Range Estimator
Check your cat’s weight against common healthy ranges for their breed.
Pet Owners
Dog Walking Calorie Estimator
Estimate calories burned on a walk using weight, distance, and time (with speed and intensity guidance).
Disclaimer: These tools are educational and informational. They do not replace individualized advice from your veterinarian. Always consult your veterinary team before making diet or care changes.