So you're thinking about getting a Maine Coon, or maybe you already have one and you're just amazed at how huge they are. I remember when I first saw a Maine Coon in person – I literally did a double take. I thought, "Is that a cat or a small dog?" It's a question a lot of people have: just how big do Maine Coon cats get?
Let's cut to the chase. These cats are massive. They're not your average house cat. We're talking about a breed that holds records for being the longest domestic cat in the world. But there's a lot more to it than just saying "they're big." Their size comes with specific considerations, from the food they eat to the litter boxes they need.
The Straight Facts on Maine Coon Size
If you're looking for hard numbers, here they are. But keep in mind, these are averages. Just like people, every cat is an individual. Genetics, diet, and overall health play huge roles.
| Gender | Average Weight | Average Length (nose to tail tip) | Height at Shoulder |
|---|---|---|---|
| Male Maine Coon | 13 - 18 lbs (5.9 - 8.2 kg) | 30 - 40 inches (76 - 102 cm) | 10 - 16 inches (25 - 40 cm) |
| Female Maine Coon | 8 - 12 lbs (3.6 - 5.4 kg) | 28 - 36 inches (71 - 91 cm) | 8 - 14 inches (20 - 36 cm) |
Seeing those numbers really puts things in perspective, doesn't it? A large male Maine Coon can be as long as a yardstick. I've had friends who are new to the breed completely underestimate how much space these cats actually need. They're not just heavy – they're long, tall, and need room to stretch out.
What surprises most people is that Maine Coons don't reach their full size quickly. Unlike smaller breeds that are basically done growing by one year, Maine Coons have a much longer growth period. This slow maturation is part of what allows them to develop such a substantial frame.
Why Are Maine Coons So Large?
This is a question I find fascinating. Why did this particular breed evolve to be so much bigger than your typical tabby? There are a few theories floating around.
Some believe their size was a natural adaptation to the harsh winters of Maine, where the breed originated. A larger body mass helps conserve heat. Others speculate that early Maine Coons might have interbred with wild cats like bobcats or even lynxes, though there's little scientific evidence for this. The most likely explanation is simple natural selection – the biggest, hardiest cats survived and passed on their genes.
Their size isn't just for show, either. Every aspect of their build serves a purpose. Those large, tufted paws act as natural snowshoes. Their long, bushy tails can wrap around their bodies for warmth. Even their water-resistant coats are adapted for survival in cold, wet conditions.
The Growth Stages of a Maine Coon
Understanding how Maine Coons grow is key to understanding their final size. It's not a straight line from kitten to giant cat. There are distinct phases, and each one comes with its own characteristics and needs.
When you first bring home a Maine Coon kitten, they might not look much different from any other kitten. But give it a few months, and you'll start to see the differences emerge.
Kitten Stage (0-6 months)
Maine Coon kittens are born larger than most other breeds. A newborn might already be 25% bigger than a typical domestic shorthair kitten. They grow rapidly during these first few months, sometimes gaining as much as 2 pounds per month.
During this stage, proper nutrition is absolutely critical. They need high-quality kitten food with plenty of protein to support their rapid growth. I made the mistake of switching to adult food too early with my first Maine Coon, and I'm convinced it stunted his growth somewhat.
Their proportions might look a bit awkward during this phase. You might notice their ears and paws seem disproportionately large – that's because they're growing in anticipation of the large body they'll eventually fill out.
Adolescent Stage (6 months - 2 years)
This is when you really start to see the Maine Coon size emerge. While most cats are considered adults at one year, Maine Coons are still very much growing during their second year.
They'll continue to gain both height and length, though the rate slows down considerably after the first year. Muscle development becomes more noticeable during this stage. You'll see them filling out rather than just getting longer.
This extended adolescence is part of what makes Maine Coons such gentle giants. They maintain their playful, kitten-like demeanor longer than most breeds. My cat was still trying to fit into spaces he'd clearly outgrown well into his second year.
Adult Stage (2-4 years)
Most Maine Coons reach their full length and height by around 3 years old, but many continue to fill out and gain muscle mass until they're 4 or even 5 years old. This is when they achieve their final, impressive stature.
It's important to monitor their weight during this final growth phase. Because they're still developing, it can be easy to mistake healthy filling-out for obesity. Regular vet check-ups are essential to ensure they're on track.
I've found that even after they stop growing, Maine Coons continue to change. Their coats thicken, their features become more pronounced, and they settle into their true personality.
Factors That Influence How Big Maine Coon Cats Get
Not every Maine Coon will hit those maximum size numbers. Several factors determine exactly how big an individual cat will become. Understanding these can help you set realistic expectations.
Genetics
This is the big one. The size of a Maine Coon's parents is the strongest predictor of how large they'll become. If you're getting a kitten from a breeder, don't be shy about asking to see the parents. A kitten from larger parents has a higher chance of being large themselves.
Some bloodlines are known for producing particularly large cats. European Maine Coons, for example, are often larger than their American counterparts. The difference isn't enormous, but it's noticeable if you're familiar with the breed.
I learned this the hard way. My first Maine Coon came from smaller parents, and while he's still a big boy, he's not nearly as massive as some I've seen at cat shows.
Nutrition
What you feed your Maine Coon, especially during their growth phases, significantly impacts their final size. A diet lacking in essential nutrients can stunt their growth, while overfeeding can lead to obesity rather than healthy size.
High-quality protein is non-negotiable for these large cats. They need it for muscle development. I've switched between several premium cat foods over the years, and I've noticed visible differences in my cat's muscle tone and overall condition depending on what he's eating.
Proper hydration is another often-overlooked factor. Maine Coons are prone to certain health issues, and good water intake supports overall health, which in turn supports proper development.
Health and Care
Health issues can definitely affect growth. Conditions like hip dysplasia (which Maine Coons are prone to) can limit their activity, which then affects muscle development. Regular veterinary care is essential to catch any potential issues early.
Spaying or neutering can also influence final size. Cats that are altered tend to be slightly larger than intact cats because the surgery affects hormone levels that would otherwise signal the growth plates to close. The difference is usually minor, but it's there.
Exercise plays a role too. A Maine Coon that gets regular, appropriate exercise will develop better muscle tone than one that's sedentary. These are active cats despite their size – they need space to move and play.
How Maine Coon Size Compares to Other Cat Breeds
To really understand how big Maine Coon cats get, it helps to compare them to other breeds. The difference can be startling if you're used to average-sized domestic cats.
| Breed | Average Weight | Average Length | Notes |
|---|---|---|---|
| Maine Coon | 13-18 lbs (males) | 30-40 inches | Largest domesticated breed |
| Ragdoll | 12-20 lbs (males) | 24-30 inches | Can be heavier but less lengthy |
| Savannah Cat | 12-25 lbs | 20-25 inches | Taller but generally lighter build |
| Norwegian Forest Cat | 12-16 lbs (males) | 28-36 inches | Similar size, different proportions |
| Average Domestic Shorthair | 8-10 lbs | 18-24 inches | Significantly smaller |
What's interesting is that while some breeds might approach Maine Coons in weight, they often don't have the same overall bulk and length. A Ragdoll might weigh as much as a Maine Coon, but they tend to be more compact. Savannah cats are taller thanks to their long legs, but they're leaner and less substantial.
The Norwegian Forest Cat is probably the closest in terms of overall size and build. Both are natural breeds adapted to cold climates, so they've evolved similar solutions – large, muscular bodies with thick coats.
When people ask me how big do Maine Coon cats get, I often tell them to imagine the largest house cat they've ever seen, then add about 30% more cat. That usually gets the point across.
Living with a Giant: Practical Considerations
Okay, so Maine Coons are big. What does that actually mean for day-to-day life? Quite a bit, as it turns out. Their size affects everything from the equipment you need to how they interact with your home.
Space Requirements
These are not apartment cats unless you have a particularly spacious apartment. They need room to move, stretch, and play. A small studio would feel cramped for both of you.
Vertical space is just as important as horizontal space. Maine Coons love to climb and perch up high. A tall, sturdy cat tree is non-negotiable. I learned this after my cat tried to use my bookshelf as a perch – it didn't end well for the bookshelf.
Their size also means they can reach places other cats can't. Counters that were safe from smaller cats are now fair game. You might need to cat-proof your home differently than you would for a typical cat.
Equipment and Supplies
Standard cat equipment often doesn't cut it for Maine Coons. Their size demands specialized gear.
- Litter boxes: You'll need an extra-large box. The general rule is 1.5 times the length of your cat. For a large male, that means a box at least 24 inches long. I made the mistake of starting with a normal-sized box – let's just say there were cleanup issues.
- Food and water bowls: They need wider, shallower bowls to accommodate their large heads and whiskers. Whisker fatigue is a real thing, and Maine Coons are particularly susceptible because of their size.
- Carriers: A standard cat carrier won't work. You'll need a large dog carrier for vet visits. Trying to squeeze a full-grown Maine Coon into a regular carrier is like trying to fit a square peg in a round hole.
- Beds: They need large, supportive beds. Many owners just use small dog beds, which work perfectly.
Health Considerations Related to Size
Large size comes with specific health considerations. Maine Coons are prone to certain conditions that are more common in large breeds.
Hip dysplasia is one – the same condition that affects large dog breeds. It's a malformation of the hip joint that can cause pain and arthritis. Keeping your Maine Coon at a healthy weight is crucial for managing this risk.
Hypertrophic cardiomyopathy (HCM) is another concern. While not directly related to size, it's more prevalent in Maine Coons than in many other breeds. Regular cardiac screenings are recommended.
Their large size also means they need careful handling. Picking up a 15-pound cat improperly can cause injury to both you and the cat. I always support my cat's entire body when I lift him, with one hand under his chest and the other supporting his hindquarters.
Record Holders: The Largest Maine Coons Ever
When people wonder how big do Maine Coon cats get, they're often thinking about the record holders. These cats push the boundaries of what we think is possible for a domestic cat.
Stewie, a Maine Coon from Nevada, holds the Guinness World Record for the longest domestic cat. He measured 48.5 inches from nose to tail tip. That's over four feet long! Unfortunately, Stewie passed away in 2013 from cancer, but his record still stands.
Then there's Ludo, a UK-based Maine Coon who measured 46.6 inches. His owners say he's gentle despite his size, which seems to be a common trait among these giants.
Barivel, an Italian Maine Coon, held the title of longest living cat until recently at 47.2 inches. Photos of him with his owners really show the scale – he's practically the size of a small child.
It's worth noting that these extreme sizes are exceptional. Most Maine Coons won't approach these measurements. But they show the upper limits of what the breed can achieve under the right circumstances.
I sometimes look at my own cat and try to imagine him being another foot longer. Honestly, I'm not sure my furniture could handle it.
Common Questions About Maine Coon Size
Are Maine Coons the largest cat breed?
Yes, Maine Coons are generally considered the largest domesticated cat breed in terms of overall body mass and length. While some hybrid breeds like Savannah cats can be taller due to their long legs, Maine Coons have more substantial builds.
How long does it take for a Maine Coon to reach full size?
Most Maine Coons reach their full length and height by 3-4 years old, but many continue to fill out and gain muscle mass until they're 5. This extended growth period is much longer than most cat breeds, which typically stop growing around 1-2 years.
Can you predict how big a Maine Coon kitten will get?
You can make an educated guess based on the size of the parents and the kitten's paw size. Large paws often indicate a cat that has more growing to do. However, there are no guarantees – genetics can be unpredictable.
Do Maine Coons know how big they are?
This is a funny one. In my experience, not always. They often try to fit into spaces that are clearly too small for them. My cat still attempts to curl up in boxes he outgrew two years ago. They seem to retain their kitten-sized self-image.
Are there any disadvantages to their large size?
Several. They require more space, more food, larger equipment, and veterinary care can be more expensive. They're also more prone to certain health issues like hip dysplasia. Some people find their size intimidating, though their temperament is typically gentle.
How much do Maine Coons eat compared to regular cats?
An adult Maine Coon typically eats about 1.5 to 2 times as much as an average-sized cat. The exact amount depends on their size, age, and activity level. My 16-pound male goes through about a cup of dry food plus wet food daily.
Can Maine Coons be overweight, and how can you tell?
Absolutely. Because they're supposed to be large, it can be tricky to distinguish healthy size from obesity. You should be able to feel their ribs without pressing too hard, and they should have a visible waist when viewed from above. When in doubt, consult your vet.
My Personal Experience with a Large Maine Coon
I want to share some real-world experience since that's often more helpful than just statistics. I've had my male Maine Coon, Sampson, for four years now. He weighs about 17 pounds and measures about 38 inches from nose to tail.
The first thing people notice when they meet him is his size. Then they're surprised by how gentle he is. Despite being able to look me in the eye when I'm sitting down (he's that tall), he's careful with his claws and never aggressive.
Living with a cat this size has required adjustments. The biggest surprise was how much he sheds. When a Maine Coon sheds, it's not a few hairs – it's handfuls of fur. I vacuum twice as often as I did before I had him.
Another thing I didn't anticipate was how his size affects our interactions. He can open doors by jumping on the handles. He drinks water by dipping his paw in the bowl and then licking it off – something I've heard is common in large Maine Coons.
His size also means he's expensive. Food costs are significant. The extra-large litter boxes are pricey. Even his cat tree was a special order because the standard ones weren't sturdy enough.
But would I trade him for a smaller cat? Never. His size is part of his personality. There's something incredibly comforting about having this large, warm presence in the house. When he curls up next to me, it's like having a weighted blanket that purrs.
Final Thoughts on Maine Coon Size
So, how big do Maine Coon cats get? The answer is: bigger than you probably imagine. They're not just heavy – they're long, tall, and substantial in a way that has to be seen to be fully appreciated.
Their size is part of what makes them special, but it's not the whole story. What's remarkable is how they combine this impressive physical presence with a typically gentle, dog-like personality. They're often described as "gentle giants," and that's absolutely accurate.
If you're considering getting a Maine Coon, be prepared for the practical implications of their size. They need space, specialized equipment, and a budget that accounts for their greater needs. But for the right person or family, they're incredibly rewarding companions.
Remember that while statistics give you a general idea, every cat is an individual. Some Maine Coons will be on the smaller side, while others will approach those record-breaking measurements. The exact size your cat reaches will depend on genetics, care, and a bit of luck.
At the end of the day, whether your Maine Coon tops out at 12 pounds or 20, you'll have a unique and magnificent companion. Their size is just one part of what makes them such extraordinary cats.