⚖️ Cat Weight Chart & Healthy Range Calculator

See if your cat’s current weight is roughly within a typical range for their frame and age.

Uses broad averages – your vet and body condition score are more accurate

Cat's age (months): Body frame / build:

Estimate from breed and bone structure (ask your vet if unsure).

Current weight (kg):

Weight Range Check

-- – -- kg

approx. healthy band for this age

status vs. band

How this cat weight estimate works

We assume an adult weight band based on frame size and then scale it for age:

Small frame adult: ~3–4 kg.
Medium frame adult: ~4–5.5 kg.
Large frame adult: ~5.5–7.5 kg.

Most cats reach their adult size by about 12–18 months. We estimate expected % of adult weight at earlier ages and create a ±15% “healthy band” around it. Individual cats vary widely, so always ask your vet to evaluate body condition.

Why Cat Weight Matters

Overweight cats are at higher risk for diabetes, joint problems, and urinary issues. Underweight cats may have underlying disease or inadequate food intake. A simple weight check, combined with a body condition score (BCS), helps keep your cat healthier for longer.

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Disclaimer: This cat weight checker uses broad averages and is not a substitute for veterinary advice or a professional body condition score.