Calorie Calculator for Cats
Find your cat’s exact daily calorie needs
Weight (lbs)
Life Stage
Cat Calorie Needs Explained
A cat’s daily calorie requirement is calculated using the Resting Energy Requirement (RER) formula: 70 x (body weight in kg)^0.75, then multiplied by a life stage factor. This is the same method used by veterinary nutritionists worldwide.
Calorie Needs by Weight (Neutered Adult)
| Weight | kcal/Day | Wet (oz) | Dry (cups) |
|---|---|---|---|
| 5 lbs | 130 | 4.5 oz | 1/4 cup |
| 8 lbs | 180 | 6.5 oz | 1/3 cup |
| 10 lbs | 210 | 7.5 oz | 1/2 cup |
| 12 lbs | 240 | 8.5 oz | 2/3 cup |
| 15 lbs | 280 | 10 oz | 3/4 cup |
FAQs
How many calories does an average cat need?
The average 10 lb neutered adult cat needs approximately 200-220 kcal per day. Kittens need up to 2.5x more per kg, and seniors slightly less.
Do indoor cats need fewer calories?
Generally yes. Indoor cats are less active than outdoor cats and typically need 10-20% fewer calories. Overfeeding indoor cats is a leading cause of feline obesity.
Conclusion
Use our calorie calculator for cats to start with a science-based target, then adjust based on monthly weight checks. Pair with our cat feeding calculator for a full schedule and our cat weight calculator to track progress.
Questions about cat calories? Leave a comment!