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How Many Calories Does My Cat Need?

Calculate daily calorie needs for your cat based on weight, age, activity level, and body condition.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Cat Calorie Requirements

Cat calorie needs are based on Resting Energy Requirement (RER) = 70 × (body weight in kg)^0.75, multiplied by an activity factor. A typical 10-lb indoor adult cat needs approximately 200-250 calories per day. Kittens need more (growth), seniors need less (slower metabolism). Overweight cats should reduce intake by 20% — but never fast a cat, as rapid weight loss causes potentially fatal hepatic lipidosis (fatty liver disease).

The Obesity Problem in Cats

Over 60% of US cats are overweight or obese. Indoor cats are especially prone because they eat out of boredom and lack hunting exercise. Signs of overweight: cannot feel ribs through fat cover, no visible waist when viewed from above, belly sag. Healthy weight loss for cats: 1-2% of body weight per week (a 12-lb cat should lose about 2 oz/week). Use measured portions — free-feeding is the #1 cause of feline obesity.

⚡ CalcWolf Insight

Cat calorie calculator gets 20K monthly searches from concerned cat owners. The pet nutrition audience is highly engaged — average 3+ minutes on page. Pet food brands (Purina, Royal Canin, Blue Buffalo) pay $3-8 CPC for this audience.

Frequently asked questions
How many calories should my cat eat per day?
Typical indoor adult cat (10 lbs): 200-250 calories/day. Kittens: 250-350. Outdoor/active: 300-400. Senior: 180-220. These are guidelines — adjust based on your cat body condition. If your cat is gaining weight on the recommended amount, reduce by 10-15%.
How much dry food should I feed my cat?
Most dry cat food is approximately 300-400 calories per cup. A 10-lb adult indoor cat needs about 1/3 to 1/2 cup per day, split into 2-3 meals. Always check your specific food label — calorie density varies significantly between brands.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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