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Home > Cats > How Big Does a Maine Coon Get? Average Weight & Growth Chart

How Big Does a Maine Coon Get? Average Weight & Growth Chart

Maine Coon tortoiseshell cat sitting on cat house

Maine Coons are known to be friendly, playful, and magnificent looking, thanks to their fluffy coats and large frames. They chat loudly with their human family and are more likely to be found running around than jumping into laps for a cuddle.

Maine Coons grow steadily but slowly, with the males growing up to 25 pounds and the females weighing 10 to 15 pounds. They are generally about 40 inches long and 16 inches tall. They have muscular bodies and require a high-quality, nutritionally balanced diet and plenty of exercise to ensure they grow up to be healthy and strong. Remember, these are all estimations, so your cat might not fit neatly into the growth chart below.


Maine Coon Breed Overview

Maine Coons are one of the most popular cats in the United States, and they’re also one of the largest domestic breeds. Their bodies are longer than other breeds, and they have large heads and paws. Their paws are used as snowshoes on slippery slopes, and many have extra toes on their paws, making them “polydactyl.”

Maine Coons are easy to train, intelligent, and love playing fetch and splashing about in the water, which is why they’re sometimes described as “dog-like.” They love spending time with their humans and are known for being laidback, sweet, and affectionate.

tortie maine coon outdoor
Image By: Nils-Jacobi-Shutterstock

Maine Coon Size and Growth Chart

The chart below outlines the average growth of a male and female Maine Coon. As mentioned, all kittens grow at varying rates, so don’t worry if yours doesn’t fit neatly into each category. What’s important is that you are feeding your kitten the right food, ensuring they get enough exercise, and taking them to their regular veterinarian visits.

Age Female Weight Male Weight
1 week 0.3–0.6 lbs 0.4–0.6 lbs
2 weeks 0.6–0.9 lbs 0.6–0.9 lbs
3 weeks 0.9–1.2 lbs 0.9–1.3 lbs
1 month 1.2–1.6 lbs 1.3–2.4 lbs
2 months 2.2–3.3 lbs 2.4–3.7 lbs
3 months 3.3–5.5 lbs 3.7–6.4 lbs
4 months 5.5–7.7 lbs 6.4–8.3 lbs
5 months 6–9.2 lbs 7.2–12 lbs
6 months 6.8–9.5 lbs 7.5–13.2 lbs
1 year 10–15 lbs 13–20 lbs
4 years 10–15 lbs 15–25 lbs


When Does a Maine Coon Stop Growing?

Maine Coons reach maturity at 1 year, but they don’t typically finish growing until they’re 4 years old. The growth rate will decrease considerably during this time, so you won’t notice any significant changes between the first and fourth years. Males are bigger than their female counterparts, and many factors will affect the size of your cat, which we will look at next.

Factors Affecting the Size of Maine Coons

We refer to these numbers as estimations because several factors can affect your Maine Coon’s size, such as health issues, genetics, breeding, insufficient nutrition, overeating, and how much exercise they get.

There is also a notable difference between a cat that hasn’t finished growing yet and a skinny cat. A smaller-than-average Maine Coon will be proportionate in weight and height, whereas a skinny cat will be underweight for their height and age. A dietary problem or food refusal should be taken seriously because a lack of nutrition, especially when they are growing, will affect your Maine Coon’s development.

They are also muscular cats that require lots of exercise to be physically and mentally healthy. Large cats like the Maine Coon are susceptible to obesity, so it’s up to you to ensure there is a balance between eating the right food and burning it off so your Maine Coon is happy and healthy. If you are ever concerned about your Maine Coon’s weight, contact your veterinarian for advice.

Maine coon
Image By: VBlock, Pixabay

Ideal Diet for Maintaining a Healthy Weight

Your Maine Coon will need high-quality food, either wet or dry formulas, packed with nutrients to keep them healthy and strong. Check for food stamped with The Association of American Feed Control Officials (AAFCO) approval. However, the AAFCO approves brands based on its minimum requirements for healthy feline diets. It’s better to find a well-tested formula that exceeds the requirements.

Protein is the most important ingredient, and getting real protein from meat like chicken and fish is preferable to plant protein. It’s best to avoid brands that substitute fillers for healthier ingredients because they can cause your cat to gain weight. Your cat will also need a good source of fatty acids, vitamins and minerals, carbohydrates, and amino acids.

Since the Maine Coon is bigger than your average cat, you must prepare yourself for a more expensive food bill each month, too! If you’re unsure where to start when picking the best diet for your Maine Coon, especially if they suffer from health problems, ask your vet for advice.

How to Measure Your Maine Coon

To get an idea if your Maine Coon is on the right track, you can weigh and measure them as they grow. Your vet can help, but let’s look at how to do this properly at home. First, you need someone to help because they need to be standing on all four paws, and you don’t want them scampering away. You can measure their height from their feet to the base of their neck with a fabric tape measure. The length is measured from the tip of the nose to the base of the tail.

There are some simple ways to determine if your cat is the ideal weight by touch and sight. For example, if your cat is an ideal weight, you should be able to feel their ribs if you press on them lightly. You should also be able to see the visible outline of their rib cage, while the underbelly will have a slight padding of fat. To weigh your cat, stand on a scale and record your weight. Then, weigh yourself while holding your cat and subtract the first number.

Striped Maine Coon Cat with Yellow Green Eyes_Light Hound Pictures_Shutterstock
Image By: Light Hound Pictures, Shutterstock



Many factors affect the size of a Maine Coon cat, including some you have no control over, such as genetics. However, you can control their diet, exercise routine, and visits to your veterinarian. Although Maine Coons aren’t always lap cats, they love interacting and playing games with their owners and require daily exercise to keep their weight in check. If you’re concerned your cat isn’t developing properly, make an appointment with your veterinarian.

Featured Image Credit:, Shutterstock

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