Cat Calorie Calculator

Estimate daily calories for cats using weight, body condition score, and conservative baseline math.

This calculator estimates daily calories and feeding amounts for a cat, using current weight, body condition score, and a standard resting-energy equation. Results are estimates, not medical advice.

For diabetic cats, calorie needs can vary depending on the situation. You can use this tool to plan a reasonable baseline, then adjust based on weekly weigh-ins, body condition, and your veterinarian’s guidance.

By using this calculator, you acknowledge it is for general education only and you are responsible for decisions about your cat’s diet and treatment.

How much does the cat weigh?

What is the cat’s body condition score (BCS)?

How many calories is the cat currently eating per day?

Optional. Leave blank if unknown.

How many calories are in the new selected food for this cat?

Calories Per

Include Treat Allotment?

If included, new feeding will be reduced by 10%, and a treat allotment of 10% of total calories will be included in results.

Include Treats Do not include Treats

Educational estimate only. If weight loss is needed, do it with veterinary oversight.

Weight

Current —

Target —

Daily Calories

Current —

Target —

New Feeding

—

Enter food calories to calculate.

Daily Treat Allotment

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BCS is a hands-on and visual way to estimate body fat. For the official 9-point guide and illustrations, see AAHA’s Body Condition Scoring reference.