Maine Coon Size at a Glance
Male average: 18–25 lbs · Female average: 10–15 lbs
Height: 10–16 inches · Length: up to about 40 inches including the tail
Full size: reached by 3–5 years old
Maine Coon Size Chart & Weight
If you are looking for a Maine Coon size chart to compare growth stages, you are in the right place. Here you will find real weight data from our own cats.
Maine Coons are famous as the largest domestic cat breed, but responsible breeding puts health and good structure ahead of extreme size. In this guide you will find growth data from our cats, male vs. female comparisons, and honest advice about what decides your kitten's final size.
Maine Coon Weight Chart: Growth by Age & Gender
The numbers below come from our own Maine Coons. Replace the example names and weights with your cats' real data. Every cat is different, so your Maine Coon may be above or below these numbers.
| Name | 4 Months | 6 Months | 1 Year | 2 Years | 3 Years | 5 Years |
|---|---|---|---|---|---|---|
| Cat 1 | 5 lb | 9 lb | 15 lb | 17 lb | 18 lb | 19 lb |
| Cat 2 | 7 lb | 10 lb | 18 lb | 22 lb | 24 lb | 25 lb |
| Cat 3 | 5 lb | 9 lb | 16 lb | 19 lb | 21 lb | 22 lb |
| Average | 5.7 lb | 9.3 lb | 16.3 lb | 19.3 lb | 21 lb | 22 lb |
| Name | 4 Months | 6 Months | 1 Year | 2 Years | 3 Years | 5 Years |
|---|---|---|---|---|---|---|
| Cat A | 5 lb | 6.5 lb | 10 lb | 11 lb | 12 lb | 13 lb |
| Cat B | 5 lb | 7 lb | 9.5 lb | 10.5 lb | 11 lb | 12 lb |
| Cat C | 6 lb | 8 lb | 11.5 lb | 12.5 lb | 14 lb | 15 lb |
| Average | 5.3 lb | 7.2 lb | 10.3 lb | 11.3 lb | 12.3 lb | 13.3 lb |
Are you thinking about a gentle giant for your family? See our Maine Coon kittens for adoption.
How Much Should My Maine Coon Weigh?
Enter your Maine Coon's age to see the expected weight range and average from our growth data.
How fast do Maine Coon kittens grow in their first 6 months?
Maine Coon kittens look like other kittens at first, but they grow quickly. Most double their weight between 4 and 6 months, and then keep growing slowly until they are 3 to 5 years old.
Maine Coon Size Compared to Other Breeds
| Breed | Average Weight (Male) | Average Weight (Female) |
|---|---|---|
| Maine Coon | 18–25 lbs | 10–15 lbs |
| Norwegian Forest Cat | 13–22 lbs | 9–18 lbs |
| Ragdoll | 15–20 lbs | 10–15 lbs |
| Standard House Cat | 8–11 lbs | 6–9 lbs |
What Determines the Size of a Maine Coon?
- Genetics: size mostly comes from the parents and their family lines.
- Diet & nutrition: a high-quality diet supports healthy muscle and bone growth.
- Gender: males are usually bigger than females, but some females grow large too.
- Spaying & neutering: can slightly change how fast they grow, but not their final size very much.
- Exercise: active kittens build stronger muscles.
Don't Get Caught in the Size Hype!
Some breeders advertise "giant" Maine Coons, but size alone does not decide quality. Very large cats can be more likely to have joint, hip or heart problems.
A responsible breeder focuses on strong genetics, a great temperament, breed standards and long-term health rather than extreme size. We breed for healthy, average-weight adults.
See Which Maine Coon Kittens Are Available
Biggest Maine Coon on Record
Maine Coons have held world records for the longest domestic cat. Their long bodies, big paws and bushy tails make them look even bigger than they are.
How Photos Make Maine Coons Look Even Bigger
Many viral photos of "giant" Maine Coons use a simple trick: holding the cat closer to the camera makes it look much bigger.
Having a big Maine Coon is really fun. They are cuddly, they keep you warm at night, and they are an amazing part of the family. But there is much more to them than their size: we focus on health, temperament and the breed standard.
Are Male Maine Coons Bigger than Females?
Usually, yes. Males are noticeably larger, but a female from big family lines can grow just as large. Keep this in mind when choosing a male or female kitten.
Discover more from Ablues Maine Coon Cattery
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