⚖️ Cat BMI Calculator
Use your cat’s weight and body length to compute a body mass index estimate for monitoring weight trends.
Reminder
Use BMI alongside veterinary body condition scoring (BCS) for accurate assessment. Measuring length from nose tip to base of tail works best.
How to Use This Calculator
Measure weight and length
Weigh your cat and measure body length from nose to tail base while standing.
Select units
Enter data in metric or imperial units; the calculator handles conversions.
Discuss results with your vet
Use BMI trends to guide dietary adjustments and wellness checks.
Formula
BMI = Weightkg ÷ Length(m)2
Feline BMI ranges differ from human values. Always combine with professional body condition scoring for accurate assessments.
Full Description
Cats at a healthy weight enjoy improved mobility, reduced risk of diabetes, and longer lifespans. BMI estimates provide a numerical snapshot of weight trends between veterinary visits.
Adjust feeding amounts, encourage interactive play, and monitor for sudden weight changes—especially in senior cats or those with chronic illnesses.
Frequently Asked Questions
Is BMI accurate for all cats?
It’s a screening tool. Muscular or long-bodied cats may require customized evaluation.
How often should I check BMI?
Monthly checks help track progress, especially during weight-loss programs.
What is an ideal BMI for cats?
Many healthy adult cats fall between 20–30. Consult your veterinarian for breed-specific goals.
Can I use BMI instead of a body condition score?
No. BCS includes palpation of ribs and waistline—key components of accurate assessment.