Cat Food Serving Size Calculator – Daily Portion Size Calculator
Use our free cat food serving size calculator to determine the perfect portion sizes for your cat. Our cat portion calculator calculates daily serving sizes based on weight, age, activity level, and food type, using RER and DER calculations to provide personalized feeding recommendations.
How Cat Food Serving Size Calculator Works
Our cat food serving size calculator uses standard veterinary formulas (RER and DER) to determine your cat's daily calorie needs. RER (Resting Energy Requirement) is calculated based on weight, then multiplied by activity factors to get DER (Daily Energy Requirement). The calculator then divides this by your food's calorie content to determine the exact serving size needed.
Understanding Cat Portion Sizes
Portion sizes vary based on multiple factors: kittens need more calories per pound for growth (2.5x RER), active cats need more than sedentary ones, and spayed/neutered cats typically need 10-20% fewer calories. Indoor cats are prone to obesity, so monitoring portion sizes is especially important.
Frequently Asked Questions
How much food should I feed my cat?
The amount of food depends on your cat's weight, age, activity level, and the calorie content of the food. Use our calculator to determine the appropriate serving size based on RER (Resting Energy Requirement) and DER (Daily Energy Requirement) calculations. Kittens need more calories for growth, while senior cats may need fewer calories.
How many times a day should I feed my cat?
Most adult cats do well with 2-3 meals per day. Kittens typically need 3-4 smaller meals per day. Senior cats may benefit from 2-3 smaller meals. Divide the daily serving size evenly across meals.
How do I know if I'm feeding my cat the right amount?
Monitor your cat's body condition score (BCS). You should be able to feel but not see their ribs. If your cat is gaining weight, reduce portions by 10-20%. If losing weight, increase portions. Indoor cats are prone to obesity, so monitor closely. Always consult with your veterinarian for personalized recommendations.
Related Tools & Resources
Note: This calculator provides general guidance. Individual cats may have different needs based on metabolism, health conditions, and other factors. Always consult with your veterinarian for personalized feeding recommendations, especially for kittens, senior cats, or cats with health conditions.