Cat Weight Calculator
See whether your cat sits in a healthy weight range for its frame.
Pets FitnessScience-backed formula
Enter your details
Fill in the fields, then calculate
Enter current weight.
Awaiting Data
Enter your details and tap Calculate to see your results appear here.
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ResultYour result appears here.
What it measures
A healthy weight keeps cats active and lowers the risk of diabetes and joint trouble. The right range depends on the cat's frame.
Your pet's stats convert into friendly, human readable numbers.
This tool compares your cat's weight to a healthy range for its build.
How to use this calculator
- Enter your cat's current weight.
- Pick its frame size.
- Tap Calculate to see its status.
The formula used
Healthy ranges: Small 2.5-3.5 kg \u00b7 Medium 3.5-4.5 kg \u00b7 Large 4.5-7 kg
- weight
- Your cat's current weight.
- frame
- Body frame or breed size.
Understanding Your Results
Underweight
Below range
May need a vet check.
Ideal
Within range
A healthy weight.
Overweight
Above range
Trim with diet and play.
Obese
Well above range
Ask a vet for a plan.
Tips to Improve
- Measure food rather than free-feeding.
- Encourage play and movement.
- Weigh monthly to track trends.
- Ask a vet about a target weight.
Frequently Asked Questions
Often 3.5 to 4.5 kg for a medium frame, but it varies by breed.
You should feel the ribs easily and see a waist from above.
Yes. Maine Coons and Ragdolls are naturally larger.
Scientific References
- American Animal Hospital Association. (2014). Weight Management Guidelines for Dogs and Cats.
- Cornell Feline Health Center. (2023). Obesity in cats.