How much should a Maine Coon weight? (2024)

From kitten to adult cat

With each litter of kittens, we collected and collect information about the weight of each Maine Coon kitten in different periods of their growth and development.

How much does a Maine Coon kitten weigh at birth? And at the age of 1 month? And in 3 months? At 6 months? Finally, how much should an adult Maine Coon males and females weigh?

I want to share our statistics with you. Of course, it does not pretend to be scientific and is not an axiom. Each kitten is an individual, and its weight can vary both less and more.

Despite the fact that a sufficient number of kittens have already grown in our cattery, with each litter we worry about whether our kittens are growing correctly, especially if we start comparing them with photos of kittens of the same age from other catteries. Then our weight table of kittens at different ages comes to our aid. We hope that this table of the average weight of Maine Coon kittens will be useful to you too.

How much should a Maine Coon kitten weigh at birth?

The average weight of kittens at birth is 100-150 grams (0.22-0.33 lbs). The more kittens in the litter, the average weight of a kitten in the litter is less.

We weigh kittens at birth and then 2 times a day for the first 14 days of their life. It often happens that the first day, kittens lose weight by 5-8 grams (0.022 lbs). But, as our practice shows, this is the norm. On average, a kitten should add 5-10 grams (0.022 lbs) per day. If the kitten does not gain weight, and even worse, or the weight decreases for several days - this is a serious cause for concern. Perhaps he does not have enough milk, and then he will need complementary foods. Weak and unviable kittens gain weight just as badly.

The results in this table are the observation of almost 60 kittens in our cattery, starting from the first litter.

Table of the average Weight of Maine Coon kittens from birth to 4 months

Age of the kitten	Average weight of kittens
Age of the kitten	Male Kitten	Female Kitten
1 day old	90-150 grams / 0.2-0.33 lbs
7 days old / 1-week-old	150-250 grams / 0.33-0.55 lbs
14 days old / 2 weeks old	270-350 grams / 0.6-0.77 lbs
21 days old / 3 weeks old	400-450 grams / 0.88-0.99 lbs
1-month-old	500-600 grams / 1.1-1.32 lbs	450-550 grams / 0.99-1.2 lbs
2 months old	1200-1500 grams / 2.6-3.3 lbs	1100-1300 grams / 2.4-2.9 lbs
3 months old	2000-2300 grams / 4.4-5 lbs	1600-2000 grams / 3.5-4.4 lbs
4 months old	2,8-3,5 kg / 6-7.7 lbs	2,4-3,0 kg / 5.3-6.6 lbs

After 4 months, kittens can develop and gain weight in different ways, even if they are from the same litter. On average, a kitten should add from 500 to 1000 grams (1.1-2.2 lbs) per month.

Usually, by 7-9 months, the kitten is gaining its final weight. If a cat weighs 4.5 kg (9.9 lbs) by 10 months, then it is unlikely that it will weigh 6 kg (13.2 lbs) by the year.

How do I know if my Maine Coon will grow huge?

Many factors influence the weight and size of the Maine Coon:

Genetics and the size of the parents
The Gender
The quality of nutrition
Purebred

Genetics and the size of the parents

If both parents are large, then there is a high probability that your kitten will also grow large. But sometimes even large kittens can grow up from not-big parents.

The Gender

Maine Coons have pronounced sexual dimorphism, when males are significantly larger than females. In most cases, the Maine Coon male will be larger than the female. But there are exceptions here too. Our Maine Coon female Mafia weighs almost 8 kg (18 lbs), which is much more than the average weight of Maine Coon females.

The quality of nutrition

If the kitten does not receive high-quality food, there is a chance that it will grow poorly, and will have a smaller weight and size. Therefore, make sure that your Maine Coon kitten receives food with a high protein content.

Purebred or Mixed

We don't encourage mixed mating between Maine Coons and other breeds. Thus, not only weight and size are lost, but the character also changes. Our goals as breeders is to preserve the Maine Coon as nature has made it.

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FAQs

How much should a Maine Coon weight? ›

Adult Maine Coon females weigh 4-6 kg on average (8.8-13.2 lbs). Adult Maine Coon males weigh 5-9 kg on average (11-19 lbs).

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What is a healthy weight for a Maine Coon cat? ›

Average Cat's Size

Maine Coons are considered to be a very large breed of cats. Size is one of their most recognizable features. The average male cat weighs between 15 and 25 pounds (6.8 and 11.34 kg) and female Maine Coons weigh about 10% less than males – around 10-15 pounds (4.54-6.8 kg).

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How do I know if my Maine Coon is overweight? ›

However, if you cannot feel their ribs or if they have a thick layer of fat over their ribs, then they may be overweight. Additionally, you can check their waistline and look for a “tuck” behind their ribcage. If their waist is not noticeable, they may be carrying excess weight.

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How do I know if my Maine Coon is underweight? ›

If your cat is the correct weight, you will:

be able to feel their ribs, but not see them (there should be a little fat on them)
be able to feel their backbone, but again not see it.
be able to see their waist tuck in slightly behind their ribs if you are looking down at your cat's back.

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What is the weight predictor for Maine Coons? ›

Maine Coon Growth Chart

Age	Male Kitten	Female Kitten
4 Months	2.9 – 3.8 kg (6.39 – 8.37 lb)	2.5 – 3.5 kg (5.51 – 7.71 lb)
5 Months	3.3 – 5.5 kg (7.27 – 12.1 lb)	2.7 – 4.2 kg (5.95 – 9.25 lb)
6 Months	3.4 – 6 kg (7.49 – 13.22 lb)	3.1 – 4.3 kg (6.83 – 9.47 lb)
7 Months	4.1 – 6.5 kg (9.03 – 14.33 lb)	3.3 – 4.6 kg (7.27 – 10.14 lb)

12 more rows

Jan 24, 2023

Explore More ›

What is the heaviest Maine Coon cat? ›

Much is made of the Maine Coon's fabled size. But breed standards simply call for a large, well-balanced cat — not giants. The biggest Maine Coon on record weighed 35 lbs, though that cat was obese.

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Are Maine Coons prone to obesity? ›

Obesity — Thanks to their large size, hearty appetites, and penchant for long hours laying around, Maine Coon cats may be prone to obesity. However, this can be curbed with a balanced diet and regular exercise. Left unchecked, obesity can lead to various health problems, including diabetes and joint issues.

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What is the lifespan of a Maine Coon cat? ›

A Maine Coon that is in good health (and stays indoors) can typically live for 12 to 15 years. When we consider that the average lifespan of an indoor house cat is 10 to 15 years, it's a relief to see that Maine Coons are right on track!

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What age do Maine Coons stop growing? ›

And they develop slowly: Maine Coons don't achieve full size until they are three to five years old.

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How much do XXL Maine Coon cats weigh? ›

Size. The Maine Coon was considered the largest breed of domestic cat until the introduction of the Savannah cat in the mid 1980s, and is still the largest non-hybrid breed. On average, males weigh from 18 to 22 lb (8.2 to 10.0 kg), with females weighing from 12 to 15 lb (5.4 to 6.8 kg).

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Why is my Maine Coon not big? ›

However, for whatever it's worth, purebred Maine Coons are slow to mature and don't reach their full size 'til they're around 2 years old. Mind you, they won't grow a lot taller or longer than they are after a year of age but they put on bulk for some time after they stop growing taller and longer.

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How do I fatten up my cat? ›

How to feed a cat to help them gain weight

Splitting their daily portion into smaller meals you put down regularly.
Heating up their food to release the aromas and encourage their appetite.
Avoiding watching your cat eating, as they can find this stressful.

More items...

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How do I know if I'm underfeeding my cat? ›

You can assess your cat's weight by gently checking if you can feel its ribs if they are hard to find it may be overweight. If the ribs and backbone are prominent, then your cat may be underweight and ill. If in doubt, ask a vet or pet care specialist whether your cat is within its correct weight range.

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How long does it take a Maine Coon to reach full size? ›

Maine Coon growth stages

Once your feline is nine months old, their growth will slow down, but it won't stop. Maine Coons grow longer than other breeds and reach their full size when they're four or five years old.

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Are Maine Coons cuddly? ›

They like to cuddle and often prefer to be in close proximity. Additionally, they may nap beside you, seek warmth at your feet, or simply keep you company. Thus, Maine Coons have a strong desire to be near their humans, making them undeniably affectionate companions.

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How do I make my Maine Coon grow big? ›

Their bodies are muscular, so feeding them a well-balanced diet with plenty of nutrients and ensuring enough exercise will be vital for their growth.

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How big is a full grown Maine Coon? ›

Males are generally 15-25lbs, and females are usually smaller at 10-15lbs. The height of male cats is on average 10-16 inches and are about 40 inches long. Females can stand at about 8-14 inches tall and be the same length as the male (these averages vary greatly).

Age	Female Weight (pounds)	Male Weight (pounds)
5 months	6–9.2 lbs	7.2–12 lbs
6 months	6.83–9.47 lbs	7.5–13.2 lbs
1 year	10–15 lbs	13–20 lbs
4 years	10–15 lbs	15–25 lbs

	Domestic Shorthair	Maine Coon
Weight:	6.5 – 12 pounds	18 – 22 pounds
Height:	10 – 12 inches	10 – 16 inches
Length:	15 – 25 inches	19 – 40 inches