Cat Weight Calculator
Is your cat a healthy weight? Find out now.
⚖️ Current Weight
📏 Unit
🐱 Breed Size
✂️ Neutered?
Is My Cat a Healthy Weight?
Determining whether your cat is at a healthy weight goes beyond just stepping on a scale. Breed size, age, and whether your cat is neutered all play a role. Our cat weight calculator uses these factors together to give you a personalised assessment and daily calorie target.
Healthy Weight Ranges by Breed Size
| Breed Size | Examples | Healthy Weight Range |
|---|---|---|
| Small | Siamese, Devon Rex, Cornish Rex | 5–9 lbs |
| Medium | Average domestic shorthair | 8–12 lbs |
| Large | Maine Coon, Ragdoll, Norwegian Forest | 11–18 lbs |
How to Check Your Cat’s Body Condition Score (BCS)
The Body Condition Score (BCS) is a hands-on assessment vets use on a 1–9 scale. Here’s a quick self-check:
- BCS 1–3 (Underweight): Ribs, spine, and hip bones visible with no fat covering
- BCS 4–5 (Ideal): Ribs easily felt but not visible, slight waist visible from above
- BCS 6–7 (Overweight): Ribs hard to feel under fat, waist barely visible
- BCS 8–9 (Obese): Heavy fat deposits, no waist, belly sags
Health Risks of Overweight Cats
Obesity in cats is linked to diabetes, arthritis, heart disease, and a shortened lifespan. Even 1–2 extra pounds on a small cat represents 20–25% excess body weight. If your cat needs to lose weight, our pet weight loss calculator can help you set a safe calorie deficit plan.
FAQs
What is the average weight of a domestic cat?
The average domestic cat weighs between 8 and 10 pounds. However, healthy weight varies significantly by breed — a Singapura may be perfectly healthy at 5 lbs, while a Maine Coon can be healthy at 18 lbs.
How can I help my cat lose weight safely?
Reduce calories by 10–20%, switch to wet food (more filling, fewer calories), increase play sessions, and avoid free feeding. Never put a cat on a crash diet — it can trigger hepatic lipidosis (fatty liver disease). Use our cat calorie calculator to set safe targets.
When should I worry about my cat’s weight loss?
Sudden or unexplained weight loss in a cat is always a reason to visit the vet. It can signal hyperthyroidism, diabetes, kidney disease, or cancer. A routine blood test is the fastest way to identify the cause.
Conclusion
Your cat’s weight is one of the most reliable indicators of their overall health. Use our cat weight calculator above to check where your cat stands, then use the calorie target to adjust their feeding accordingly. A healthy weight cat is a happier, longer-lived companion.
Drop a comment if you have questions about managing your cat’s weight!