How Many Calories Should A Cat Eat Per Day?

Last Updated on October 26, 2020 by Julia Wilson


How many calories should a cat eat per day?

A healthy adult cat on a maintenance diet requires 264 calories per day. Kittens, pregnant and lactating cats require more calories.

The best way to calculate a cat’s daily requirements is to calculate your cat’s resting energy requirements (RER) which is the amount of energy (in calories) expended in a day without any activity; it is similar to basal metabolic requirements.

Once you have calculated your cat’s RER, the formula then shows how to calculate your cat’s DER (daily energy requirements) which is several calories your cat should eat each day.

Always seek veterinary advice before you put a cat on a calorie restricted diet.

Source: DVM

Resting energy requirements (RER)

Resting energy requirements for cats

Growing kittens

Calorie requirements for growing kittens

Maintenance – desexed adult

Calorie requirements for desexed adult cat

Intact adult

Calorie requirements of an intact adult cat

Obese prone

Calorie requirements for obese prone cats

Weight loss

Calorie requirements for weight loss in cats


Julia Wilson is a cat expert with over 20 years of experience writing about a wide range of cat topics, with a special interest in cat health, welfare and preventative care. Julia lives in Sydney with her family, four cats and two dogs. She enjoys photography, gardening and running in her spare time. Full author bio Contact Julia