Calculate exactly how much to feed your pet based on weight, age, activity level, and body condition. Free, instant, veterinary-standard.
Calculate Daily Calories
Body Condition Score Visual Guide
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1-3: Underweight4-5: Ideal6-9: Overweight
Frequently Asked Questions
How do I calculate how much to feed my dog by weight??
Use the Resting Energy Requirement (RER) formula: 70 ? (weight in kg)^0.75. Then multiply by a life-stage factor for Maintenance Energy Requirement (MER). For example, a neutered adult dog: MER = RER ? 1.6. Our calculator above does this automatically ? just enter your dog's weight.
What is the RER formula for dogs??
RER (Resting Energy Requirement) = 70 ? (body weight in kg)^0.75. This is the baseline calories your dog needs at rest. Active, growing, or pregnant dogs need more ? typically 1.6 to 4.0 times RER depending on life stage.
How many cups of food should I feed my dog per day??
It depends on the food's calorie density and your dog's MER. For example, a 10 kg (22 lb) neutered adult dog needs roughly 470 kcal/day. If your food is 360 kcal/cup, that's about 1.3 cups per day, split into two meals. Use the calculator above for a personalized number.
Is this feeding calculator free??
Yes ? completely free. No sign-up, no paywall. It uses the same AAHA and WSAVA veterinary-standard formulas that professionals use.
Does the calculator work for cats too??
Yes. Switch the species selector to Cat. Cat MER multipliers differ from dogs ? neutered cats typically use MER = RER ? 1.2, intact cats RER ? 1.4. The calculator applies the correct formula automatically.
Disclaimer:This calculator provides estimates based on AAHA and WSAVA veterinary nutrition guidelines. Individual caloric needs vary. Always consult your veterinarian before making significant changes to your pet's diet, especially if your pet has a medical condition.