--- title: "Average cat weight: is your cat a healthy weight?" id: "6849" type: "post" slug: "average-cat-weight" published_at: "2026-09-11T09:41:50+00:00" modified_at: "2026-09-11T09:41:52+00:00" url: "https://rspcapetinsurance.org.au/pet-talk/average-cat-weight/" markdown_url: "https://rspcapetinsurance.org.au/pet-talk/average-cat-weight.md" excerpt: "Wondering what the average cat weighs, and whether your cat is somewhere in the healthy range? The slightly frustrating answer is there isn’t one magic number. Just like us, cats come in all shapes and sizes. Their healthy weight depends..." taxonomy_category: - "Health & wellness" --- [Pet Talk](https://rspcapetinsurance.org.au/pet-talk/) [Health & wellness](https://rspcapetinsurance.org.au/pet-talk/category/health-and-wellness/) Average cat weight: is your cat a healthy weight? Health & wellness # Average cat weight: is your cat a healthy weight? Written by our RSPCA Pet Insurance Team 11 Sep, 2026 - 7 min read Wondering what the average cat weighs, and whether your cat is somewhere in the healthy range? The slightly frustrating answer is there isn’t one magic number. Just like us, cats come in all shapes and sizes. Their healthy weight depends on a range of factors including their size, frame, and age. That’s why vets tend to look at your cat’s overall body condition, rather than relying on the scale alone. Here’s how to get a better idea of what’s healthy for your cat, what changes to keep an eye on, and when it’s worth having a chat with your vet. **Table of contents** - [Is there really an ‘average’ healthy weight for all cats?](#is-there-really-an-average-healthy-weight-for-all-cats) - [Why body condition matters more than the number on the scale.](#why-body-condition-matters-more-than-the-number-on-the-scale) - [What can influence your cat’s weight?](#what-can-influence-your-cats-weight) - [Helping your cat maintain a healthy weight](#helping-your-cat-maintain-a-healthy-weight) - [How RSPCA Pet Insurance may help support your cat’s health and wellbeing](#how-rspca-pet-insurance-may-help-support-your-cats-health-and-wellbeing) ## Is there really an ‘average’ healthy weight for all cats? While it would be quite handy if there was an ‘average’ healthy weight for all cats, it’s not quite that simple. What’s considered a healthy weight can vary between individual cats and may depend on factors such as their size, frame, and age, so a single ‘healthy’ number on the scale doesn’t exist across the board. What matters more is [body condition](https://wsava.org/wp-content/uploads/2025/06/WSAVA_BCSCat_BCSCat_Nutrition_250612.pdf) (essentially whether a cat is carrying the right amount of fat for their frame) and how your cat’s weight changes over time. ## Why body condition matters more than the number on the scale A number on the scale can only tell you so much. Because a healthy weight varies between individual cats, the [World Small Animal Veterinary Association (WSAVA)](https://wsava.org/global-guidelines/global-nutrition-guidelines/) recommends using a nine-point body condition score (BCS) alongside weight. ### The nine-point scale, explained On the WSAVA scale, a score of five is considered ideal. Cats scoring one to three are considered underweight, with increasingly visible ribs, spine, hip bones, and very little fat covering them. A score of seven or eight indicates increasing levels of excess weight. The ribs become harder to feel and the waist becomes less obvious. A score of nine is considered obese, with significant fat deposits and ribs that are very difficult to feel. You don’t need to become an expert in feline body scoring, though. Your vet can advise you on what a healthy body condition looks and feels like for your cat. ### How to check your cat’s body condition at home There are a few simple things you can do at home to check your cat’s body condition: - **Feel the ribs:** Gently run your hands along your cat’s sides. You should be able to feel their ribs with light pressure, without the ribs looking sharply visible. - **Look for a waist:** When you look down at your cat from above, you should be able to see a gentle waist behind the ribs. - **Check their tummy:** From the side, the belly should tuck upwards slightly behind the ribcage rather than hanging low. If you’re unsure what you’re feeling beneath all that fluff, your vet can weigh your cat, assess their body condition, and provide advice. ## What can influence your cat’s weight? When it comes to your cat’s weight, there are several factors that can play a part: ### Desexing The RSPCA recommends [desexing](https://kb.rspca.org.au/categories/companion-animals/cats/general/why-should-i-have-my-cat-desexed) for its important welfare and population-management benefits. However, desexed cats, particularly males, can also have a higher risk of obesity. Monitoring your cat’s weight and body condition after desexing can help you keep track of any changes. ### Age and life stage Your cat’s weight isn’t fixed for life. As kittens grow into adults, gaining weight is simply part of normal development. Later, as cats enter adulthood, their weight should generally stabilise. And some cats may either gain or lose weight as they enter their senior years. However, this doesn’t mean weight loss in a senior cat should automatically be put down to getting older. If you notice your cat steadily losing weight, it’s worth mentioning it to your vet. ### Size and body frame Just like people, cats come in different shapes and sizes. Some are naturally larger and more heavily built, while others have a smaller frame. So rather than comparing your cat with an ‘average’, it’s more helpful to consider what’s healthy for them as an individual. ## Helping your cat maintain a healthy weight Helping your cat to maintain a healthy weight is an important part of supporting their overall health and wellbeing. The RSPCA recommends weighing your cat regularly and talking to your vet if you notice a change in their weight or body condition. If your cat needs to gain or lose weight, or their weight is consistently increasing or decreasing, your vet can help identify the underlying cause and advise on the most appropriate diet and feeding plan for your cat. Whether your cat is trying to lose weight, gain weight, or simply maintain a healthy weight, [making mealtimes more engaging](https://kb.rspca.org.au/categories/companion-animals/cats/caring-for-my-cat/what-should-i-feed-my-cat) may help. [Puzzle feeders and other food-search activities](https://rspcapetinsurance.org.au/pet-talk/cat-toys-and-enrichment/) can stimulate your cat’s senses and encourage them to move, explore, and express natural foraging behaviours. Any changes to your cat’s diet or feeding routine should be made gradually and with your vet’s guidance. The right amount of food, and any weight-management plan, will depend on your individual cat. ## How RSPCA Pet Insurance may help support your cat’s health and wellbeing Keeping an eye on your cat’s weight is an important part of looking after their overall health. If you notice an unexplained change in their weight, or you’re concerned they may be under or overweight, a visit to the vet can help you understand what’s going on. And if an eligible illness is behind these changes, pet insurance may be able to help with the cost of treatment. With [RSPCA Pet Insurance](https://rspcapetinsurance.org.au/) you can customise your cover to suit your cat and budget, with annual cover options up to $35,000, benefit percentage options up to 90%, a zero excess option, and a range of optional extras. And with every policy contributing to vital [RSPCA animal welfare initiatives](https://rspcapetinsurance.org.au/pet-insurance-with-purpose/) , it’s protection with purpose. For your own cat and thousands of others across Australia. To learn more about how RSPCA Pet Insurance could support you and your pet, click [here](https://rspcapetinsurance.org.au/) . Or, if you’re ready to take the next step, you can fetch a commitment-free pet insurance quote [online](https://quote.rspcapetinsurance.org.au/) . ### **Disclaimer** As with any insurance, terms, conditions, and exclusions apply. Please read the [Product Disclosure Statement](https://rspcapetinsurance.org.au/product-disclosure-statement/) to make sure the cover suits your needs. *This article provides general information only and is not a substitute for personalised veterinary advice. Always speak with your vet about your pet’s individual health needs. Accurate as at 11 September 2026.* **References** [1] World Small Animal Veterinary Association (WSAVA). *Global Nutrition Guidelines.* Available from: [https://wsava.org/global-guidelines/global-nutrition-guidelines/](https://wsava.org/global-guidelines/global-nutrition-guidelines/) [2] RSPCA Australia. *Do cats have special nutritional requirements?* RSPCA Knowledgebase. Available from: [https://kb.rspca.org.au/categories/companion-animals/cats/caring-for-my-cat/do-cats-have-special-nutritional-requirements](https://kb.rspca.org.au/categories/companion-animals/cats/caring-for-my-cat/do-cats-have-special-nutritional-requirements) [3] RSPCA Australia. *Why should I have my cat desexed?* RSPCA Knowledgebase. Available from: [https://kb.rspca.org.au/categories/companion-animals/cats/general/why-should-i-have-my-cat-desexed](https://kb.rspca.org.au/categories/companion-animals/cats/general/why-should-i-have-my-cat-desexed) [4] RSPCA Australia. *What should I feed my cat?* RSPCA Knowledgebase. Available from: [https://kb.rspca.org.au/categories/companion-animals/cats/caring-for-my-cat/what-should-i-feed-my-cat](https://kb.rspca.org.au/categories/companion-animals/cats/caring-for-my-cat/what-should-i-feed-my-cat) [5] World Small Animal Veterinary Association (WSAVA). *Cats: Body Condition Score.* Available from: [https://wsava.org/wp-content/uploads/2025/06/WSAVA_BCSCat_BCSCat_Nutrition_250612.pdf](https://wsava.org/wp-content/uploads/2025/06/WSAVA_BCSCat_BCSCat_Nutrition_250612.pdf) [6] Frontiers in Veterinary Science. *Aging in Cats: Owner Observations and Clinical Finding in 206 Mature Cats at Enrolment to the Cat Prospective Aging and Welfare Study.* Available from: [https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2022.859041/full](https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2022.859041/full) ## FAQs ### What is a healthy weight for a cat? A healthy weight depends on factors such as your cat’s size, frame, and age. That’s why vets look at [body condition](https://wsava.org/global-guidelines/global-nutrition-guidelines/) as well as the number on the scale. The same weight could be perfectly healthy for one cat and too much for another. ### How do I know if my cat is overweight? Have a gentle feel of their ribs and look at their shape. Ideally, you should be able to feel the ribs with light pressure, see a waist when looking from above and notice a slight tummy tuck from the side. If their ribs are difficult to feel or you can’t see their waist, it’s worth asking your vet to check their weight and assess their body condition. ### Does desexing make cats put on weight? Desexing has important [welfare and population-management benefits](https://kb.rspca.org.au/categories/companion-animals/cats/general/why-should-i-have-my-cat-desexed) . However, desexed cats, particularly males, can have a greater risk of obesity. Monitoring their weight and body condition after desexing can help you manage this risk. ### How much should I feed my cat to help them maintain a healthy weight? There isn’t one portion size that works for every cat. How much food your cat needs depends on several factors, including their age, activity level, and individual health needs, so your vet can help advise on the most appropriate diet and meal portions for your cat. ### What does RSPCA Pet Insurance offer? [RSPCA Pet Insurance](https://rspcapetinsurance.org.au/) offers customisable cover, so you can choose the annual cover limit, benefit percentage, excess, and optional extras that best suit your cat and budget. Every policy also contributes to vital [RSPCA animal welfare initiatives](https://rspcapetinsurance.org.au/pet-insurance-with-purpose/) . So, while you’re helping to protect your own pet, you’re also making a difference for animals in need across Australia. To learn more, visit the [RSPCA Pet Insurance website](https://rspcapetinsurance.org.au/) or get a commitment-free quote [online](https://quote.rspcapetinsurance.org.au/) . As with any insurance, terms, conditions, and exclusions apply. Please read the [Product Disclosure Statement](https://rspcapetinsurance.org.au/product-disclosure-statement/) to make sure the cover suits your needs. [See more](https://rspcapetinsurance.org.au/faqs/) ## Related blogs [Understanding hip dysplasia in dogs Sep 2026 - 8 min read Read blog](https://rspcapetinsurance.org.au/pet-talk/understanding-hip-dysplasia-in-dogs/) [Cat obesity: a common health issue affecting Australian cats Sep 2026 - 11 min read Read blog](https://rspcapetinsurance.org.au/pet-talk/cat-obesity-a-common-health-issue/) [A simple pet vaccination schedule for Australian pet parents Sep 2026 - 5 min read Read blog](https://rspcapetinsurance.org.au/pet-talk/pet-vaccination-schedule/)