Cat BMI Calculator

Calculate your cat’s Feline Body Mass Index (FBMI) using simple measurements. This tool helps assess your cat’s body condition based on rib cage circumference and leg length measurements.

1. Enter Your Cat’s Measurements
2. Your Cat’s FBMI Results
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Ready to calculate!

Enter your cat’s measurements and click “Calculate FBMI”

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Formula Source:

FBMI calculation based on scientific research: FBMI = (((RC / 0.7062) – LIM) / 0.9156) – LIM

View Research Paper ↗
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Important Disclaimer:

The FBMI is a tool to help assess body fat, but it’s not a perfect measure for every cat. Other factors like age, breed, and muscle mass can influence a cat’s ideal weight. Always consult with a veterinarian for professional advice about your cat’s health and weight management.