Cat Feeding Calculator 2026 – Calculate Your Cat's Daily Food Amount
The cat feeding calculator determines your cat's daily energy needs and food portions based on weight, age, activity level, and feeding goals. The calculator works for all cat owners — whether your cat is a kitten, adult, or senior, indoor or outdoor.
The calculator uses the veterinary standard RER formula (Resting Energy Requirement) to calculate your cat's resting energy needs and accounts for individual factors like spaying/neutering, activity, and weight goals. You'll get daily calorie requirements and precise gram amounts for dry food, wet food, or mixed feeding. You can select the number of meals and the calculator will divide portions accordingly. Quick-select buttons give you access to common cat profiles. Always check the kcal information on food packages and consult with your veterinarian about your cat's individual nutrition needs.
How Much Dry Food or Wet Food Should a Cat Get Daily?
A cat's daily food amount depends on weight, age, and activity level. A typical 9-11 lb adult indoor cat needs about 200-270 kcal daily, which equals approximately 2-2.5 oz of dry food or 8-11 oz of wet food. Mixed feeding combines both food types. The calculator helps you find the right portion for your specific cat.
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Browse all tools →Cat feeding calculator helps determine your cat's daily energy needs and appropriate food amounts based on weight, age, activity level and goal. Tool suitable for all cat owners.
Calculator computes your cat's daily energy requirement (kcal) using the RER formula (Resting Energy Requirement) used in veterinary medicine and considers individual factors like age, neutering, activity and weight goal.
- Calculates resting energy requirement (RER) and maintenance energy requirement (MER) based on your cat's weight.
- Converts calories to grams for dry food, wet food or mixed feeding.
- Divides daily portion into desired number of meals and calculates allowed treat portion.
Calculator results are indicative starting values. Individual energy needs of cats can vary significantly.
- Monitor your cat's weight weekly and adjust food amount by 10% as needed.
- Treats should constitute maximum 10% of daily calorie intake.
- If cat loses or gains weight unexpectedly, contact veterinarian.
Calculator does not replace veterinary nutritional counseling. Especially for sick, pregnant or nursing cats, feeding should be discussed with a professional.
- Rapid weight loss can cause life-threatening hepatic lipidosis in cats.
- Nutritional needs of kittens and senior cats differ significantly from adult cats.
- Calorie content of dry and wet foods varies by brand — always check package information.