Cat Food Calculator

Enter your cat's weight and life stage to calculate daily food portions.

Cat Food Calculator
Results

Enter your cat's weight and life stage to calculate food portions.

Results are estimates and may vary. Always consult a qualified professional before making decisions based on these calculations.

Tips & Recommendations

RER Formula

70 × weight^0.75 = resting energy need. The scientific foundation.

Check the Label

Enter kcal/100g from the package — key to accurate portions.

Monthly Weigh-In

Weigh monthly and adjust. If gaining, reduce portions by 10%.

Water Matters

Wet food provides hydration. With dry food, always keep fresh water available.

Frequently Asked Questions

How much should I feed my cat?

Depends on weight, age, and activity. A 4kg adult cat needs about 200-280 kcal/day (60-80g dry food).

How often should cats eat?

Adults: 2 meals/day. Kittens: 3-4 meals/day. Some cats do well with controlled free-feeding.

Wet or dry food?

Both are nutritionally complete. Wet food has more moisture (good for hydration). Many vets recommend a mix.

How do I know food calories?

Check the package label for 'metabolizable energy' or kcal/100g. Dry food: 300-400 kcal/100g. Wet: 70-100 kcal/100g.

Should I adjust for neutered cats?

Yes. Neutered cats need 20-30% fewer calories. Use 'Indoor Adult' or 'Overweight' setting.

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Last updated: May 6, 2026