The cat food portion calculator estimates your cat's daily calorie needs and translates them into wet food (oz), dry food (cups/grams), or combination feeding portions based on weight, age, lifestyle, and neuter status.
Your Cat's Details
How to Calculate Your Cat's Daily Food Portions
A 10-lb (4.5 kg) indoor neutered adult cat needs approximately 200–250 calories per day. The cat food portion calculator uses the RER formula modified for cats (70 × weight in kg^0.75) with cat-specific life stage and lifestyle multipliers.
Step 1: Check Your Food's Calorie Content
Standard wet cat food contains 80–100 kcal per 3.5 oz (100g) can. Dry cat food averages 300–400 kcal/cup. Premium or raw diets vary widely — always check the label. Divide your cat's daily calorie target by the food's caloric content to get portions.
Step 2: Split into 2 Meals
Two meals per day is ideal for most cats — morning and evening. Avoid free-feeding dry food, as it's a major contributor to obesity. An automatic timed feeder can help maintain a consistent schedule even when you're away.
Step 3: Monitor Weight Monthly
A healthy adult cat should maintain stable weight within 5%. Weigh monthly using a baby scale or by weighing yourself while holding the cat (subtract your weight). Adjust portions if weight trends up or down more than 0.5 lb over a month.
FAQ
Is this cat food calculator free?
Yes, completely free with no signup required.
How many calories does an average cat need per day?
A healthy 10-lb (4.5 kg) indoor neutered adult cat needs approximately 200–250 calories per day. Active cats need more; overweight cats on a diet need controlled portions around 180–200 calories. Kittens need roughly 2× adult calories per pound of body weight.
Should I feed my cat wet or dry food?
Both have merits. Wet food is higher in moisture (important for urinary health), lower in carbohydrates, and often preferred by cats. Dry food is more calorie-dense, convenient, and generally less expensive. Many vets recommend a combination: wet food once or twice daily plus a small portion of dry for dental benefits.
How many times a day should I feed my cat?
Adult cats do best with 2 meals per day. Free-feeding (leaving dry food out all day) tends to cause obesity in most cats. Kittens should eat 3–4 times per day to support growth. Automatic feeders can help divide daily portions into smaller, timed meals.
My cat is overweight — how do I calculate the right portion?
Use your cat's ideal target weight, not their current weight, to calculate calories. Feed about 20% below the calculated maintenance calories for gradual weight loss (approximately 0.5–1% body weight per week). Consult your vet for a specific weight loss plan.