The Complete Guide to Maine Coon Growth Stages

Maine Coon Growth Stages: Understanding Your Cat’s Journey

How do you know how large your Maine Coon kitten will become? Is your kitten developing normally? Is there such a thing as too big? These are all great questions, and we will answer them all. Maine Coons are renowned for their large size and gentle nature, making them a favorite among cat enthusiasts. Understanding the Maine Coon Growth Stages is essential for providing them with the best care at each stage of their development.

Genetic Determinants of Size

Genetics primarily determines how large your Maine Coon kitten will become. Males normally range from 18 to 25 pounds as adults. Females usually reach a mature weight of 10-15 pounds. Full maturity occurs between the ages of 3-5, so remember your Maine Coon kitten will develop more slowly than most other breeds. As these are the largest breed of domestic cats, they also take longer to reach their full size as compared to smaller cat breeds.

Factors Influencing Size

If you select a kitten from a breeder with extra-large cats, then it is more likely your kitten will also mature to be especially large. Remember that the biggest is not always the best. Look at other factors to make sure you are receiving a healthy kitten, whose parents do not have genetic defects. When you choose a kitten there are no guarantees as to how large or small its mature size will be. Making sure your Maine Coon kitten receives quality food that meets the nutritional requirements at each growth stage is critical for proper growth and development.

Monitoring Growth and Health

Providing a stimulating environment and adequate exercise is also very important. Enrichment toys can aid in this area. Enrichment Tips for Thriving Cats has some additional tips and suggestions to enhance your pet’s environment. Having two or more kittens is another way to increase stimulation, as cats are social and enjoy having a buddy around. Are Two Maine Coon Kittens Better than One? 

Routine exams are crucial so that your veterinarian can give feedback if your kitten may be over or under-eating. Adjusting the diet to optimize growth, while preventing obesity is an important balance. The amount of exercise your kitten receives and metabolism are additional factors.

Maine Coon Growth Stages: Understanding Your Cat's Journey - Maine Coon Kittens | Maine Coon Breeders | Maine Coon Cat

Caution with Online Representations

You may have noticed some online pictures of Maine Coon cats that seem ginormous! Some breeders use photography tricks to make their cats appear larger than they actually are. If a cat looks like Godzilla in an online picture, most likely you are being duped. If the breeder is purposely trying to manipulate the size of their cats it definitely brings into question other things they may not be representing accurately.

It is very difficult to know how much a cat weighs from looking at a picture. Never be afraid to ask the breeder what the parents actually weigh. Remember that there’s no guarantee that a kitten will be as large as the parents. It’s very likely to mature to their size but may be larger or smaller. As noted earlier, males should mature to a larger size than females. Responsible breeders will put health and quality above size in their breeding program.

Factors Affecting the Maine Coon Growth Stages

Maine Coon cats are known for their large size, and several factors can influence how big they grow. While genetics play a significant role, other factors such as nutrition, environment, and overall health can also impact their size.

  1. Genetics: Genetics is the primary determinant of a Maine Coon cat’s size. Kittens inherit genes from their parents, which can influence their adult size. If both parents are large, the kittens are likely to be large as well.
  2. Nutrition: Proper nutrition is crucial for the healthy growth and development of Maine Coon cats. Feeding them a balanced diet that meets their nutritional needs is essential. Poor nutrition can lead to stunted growth or other health issues that may affect their size.
  3. Health: The overall health of a Maine Coon cat can also affect their size. Cats that are healthy and free from disease are more likely to reach their full-size potential. Regular veterinary check-ups and proper health care are important for ensuring their well-being and growth.
  4. Environment: The environment in which a Maine Coon cat lives can also play a role in their size. Providing a stimulating environment with plenty of space to move and play can help them develop muscle tone and maintain a healthy weight.
  5. Exercise: Regular exercise is important for maintaining a healthy weight and promoting muscle development in Maine Coon cats. Providing them with toys and opportunities to play can help them stay active and healthy.

How much food should you feed your Maine Coon?

The amount of food your Maine Coon should consume depends on their life stage and activity levels. Kittens require more calories than adult cats due to their constant growth. Here’s a feeding guide based on age:

  1. Kittens (3 weeks to 10 months): After weaning, introduce wet food in smaller, more frequent portions (two to six times a day) to accommodate their small stomachs.
  2. Young Adults (10 to 15 months): Reduce feeding frequency to twice a day.
  3. Adults (15 months to 4 years): Transition gradually from kitten to adult food to prevent digestive issues.
  4. Adulthood: Provide 50–70 calories per kilo of body weight daily for adult Maine Coons.
  5. Senior Cats: Around nine years old, consider reducing calorie intake in consultation with your vet due to decreased activity levels. If you’re unsure about how much to feed your Senior Cat Maine Coon, consult your veterinarian. They can provide personalized recommendations based on your cat’s individual needs.


How fast does a Maine Coon grow?

A Maine Coon kitten grows rapidly during its first year, with most of its growth occurring within the first six months. After that, their growth slows down, and they reach full maturity between 3 to 5 years of age

How big is a 2-year-old Maine Coon?

A 2-year-old Maine Coon cat can vary in size, but on average, they may weigh between 12-18 lbs, with males typically being larger than females.

How can I help my Maine Coon kitten grow up healthy and strong?

Provide a balanced diet, regular veterinary check-ups, plenty of exercise, and a stimulating environment to support their growth and development.

Is it normal for a Maine Coon kitten to have growth spurts?

Yes, it’s normal for kittens to have growth spurts, especially during the first year of life.

What is the max age of a Maine Coon?

Maine Coon cats can live up to 15 years or longer with proper care. Some Maine Coons have been known to live into their late teens or even early twenties.

Enrichment tips for Thriving Cats - Maine Coon Kittens | Maine Coon Breeders | Maine Coon Cat

Margaret Ritzler is an Animal Scientist, holding an MAL in Agricultural Leadership and a BS in Animal and Dairy Science. She taught Veterinary Science for several years through Career Technical and Agricultural Education. She has also worked for the University of Florida & Navajo Technical University. Her diversified background and wealth of knowledge in the animal industry make her a true asset to the Savvy Cats team.

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