🐈 Cat Calorie Calculator

Indoor or outdoor? Kitten or adult? Learn your cat's ideal daily portion in seconds. Adjusted for feline metabolism and life stage. Based on published feline nutrition guidelines and APOP recommendations.

Enter Your Cat's Details

Cat's Name (optional)

Weight (lbs)

Age (years)

Life Stage

Indoor / Outdoor Status

Body Condition

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Daily Calories (kcal)

RER (Resting Energy): — kcal/day

DER (Daily Energy): — kcal/day

Weight Loss Target: — kcal/day

Wet Food Equivalent: — oz/day

Indoor cats typically need 20-30% fewer calories than outdoor cats. Kittens need about 2.5x their RER during rapid growth. Based on AAFP and APOP feline nutrition guidelines.

Calorie Comparison

Calculation History

Date	Name	Weight	Life Stage	Indoor	RER	DER	Actions

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Disclaimer: This calculator uses feline RER formulas adjusted for life stage and indoor/outdoor status. Indoor cats typically need 20-30% fewer calories. Weight loss targets use 80% of DER per APOP guidelines. This is informational only and not a replacement for professional veterinary advice.