Daily Cat Calorie Estimator
Calculate your cat's daily Resting Energy Requirement (RER) and Maintenance Energy Requirement (MER) calorie targets.
Cat Measurements
Base Resting Requirement (RER): 216 kcal/day
Neutered adult cat maintenance (DER = 1.2–1.3 × RER)
- RER calculated using standard veterinary exponent formula: 70 × (4.5 kg)^0.75 = 216 kcal/day.
- Applies standard energy multipliers recommended by WSAVA Global Nutrition Committee guidelines.
- Individual metabolic rates can vary by up to 20%. Adjust portion sizes gradually based on body condition score.
Critical Veterinary Warning
This calculator is designed for healthy, adult cats. Kittens under 1 year, pregnant or lactating queens, cats with kidney disease, diabetes, or severe obesity require specialized veterinary dietary prescriptions and must NOT be put on unmonitored calorie restriction.
Frequently Asked Questions
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