How many calories does an average indoor cat need per day?

Most spayed or neutered indoor adult cats at a healthy weight need somewhere between 180 and 280 calories per day, depending on body weight. A 4 kg cat typically lands around 200–220 kcal/day as a starting estimate; a 5 kg cat around 240–260 kcal/day. Active cats and intact cats generally need more; sedentary or overweight cats being managed on a reduced intake may need less.

Does a spayed or neutered cat need fewer calories?

Yes -- spaying or neutering lowers metabolic rate, typically reducing daily calorie needs by around 20–30% compared to an intact cat of the same size. Many cats gain weight after the procedure simply because their portion isn't adjusted to reflect the new, lower requirement.

How do I know if I am feeding my cat the right amount?

The most reliable check is to feed a consistent measured amount, then weigh your cat monthly and assess body condition (you should be able to feel ribs with light pressure, and see a visible waist from above). If weight is stable and body condition looks healthy over several weeks, the amount is likely appropriate. If weight is creeping up or down, adjust the daily portion by 10–15% and reassess.

Should I follow the feeding guidelines on the cat food bag?

Bag guidelines are a reasonable starting point but are usually written for intact, moderately active adult cats and often err on the generous side. Spayed or neutered cats and low-activity indoor cats typically need less than the bag suggests. Use the guidelines as a rough starting range, then calibrate based on your cat's actual weight trend over time.

Do senior cats need more or fewer calories?

It depends on the individual. Many older cats become less active and need fewer calories, but some senior cats lose muscle mass and may actually need more. Monthly weight checks are especially valuable in senior cats because needs can shift in either direction, and the sooner a trend is caught, the easier it is to manage.

How Many Calories Does My Cat Need? | PetCalculator

Daily calorie needs for cats depend on weight, age, activity level, and spay/neuter status. Here's how to estimate a realistic target for your cat.