Cats • nutritionVerified Scientific Formula
Kitten Calorie & Growth Requirement Calculator
Computes accelerated growth energy requirements for young kittens and adolescent felines.
Enter Parameters
Calculated Output
Kitten Daily Energy Requirement
220kcal/day88 kcal/day (RER)
What This Result Means
Your growing kitten requires ~220 kcal/day (~2.8 cans of kitten food daily).
Calculation Details & Practical Equivalents
Growth Energy Factor
2.5× RER
Resting Energy (RER)
88 kcal/day
Approximate 3 oz Cans
~2.8 cans/day
Formula & Mathematical Methodology
Standard Mathematical Formula
Kitten MER = 70 × (Body Weight in kg)^0.75 × (2.0 to 2.5× growth factor)
Formula Variables Defined
BWKitten Weight(lbs or kg)
Current scale weight
AgeKitten Age(weeks)
Age in weeks
Step-by-Step Calculation Example
Example: 12-Week Kitten (2.5 lbs / 1.13 kg)
A rapidly growing 12-week-old kitten.
- Weight in kg = 2.5 ÷ 2.20462 = 1.13 kg
- RER = 70 × (1.13)^0.75 = 77 kcal/day
- Growth Multiplier = 77 × 2.5 = 192 kcal/day
Final Output: 192 kcal/day (2.5× RER)
Key Assumptions
- Diet is an AAFCO/NRC approved complete growth formula.
Biological Limitations
Verified Scientific & Veterinary Sources
Version: 1.0•Methodology Reviewed: 2026-01-15
1. Nutrient Requirements of Dogs and Catstextbook
National Research Council (NRC) Committee on Animal Nutrition (2006). National Academies Press, Washington, D.C.
Access Source Authority Kitten Calorie & Growth Requirement Calculator — FAQs
Kittens under 4 months should be fed 3 to 4 small meals per day due to small stomach capacity and high energy demands.
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