Table of Contents
These Gentle giant Maine coon Cats are usually admired for their huge size and appearance. Prospective Maine coon owners question about how huge they Maine coon can get and if their size could affect advanced daily care, space, costs and so on. Maine coon size can be broken down into: length, weight, age and gender. This guide will help you with visuals, clear tables, and real-world comparisons.
Average Size of a Maine Coon Cat
The Maine coon exemplifies the bigger size of all domestic cats with augmented structure and weight. Maine coon size can be described in the following dimensions.
Maine Coon Size Chart
| Category | Average Size |
| Male Weight | 13–18 lbs (6–8 kg) |
| Female Weight | 8–12 lbs (3.5–5.5 kg) |
| Body Length | 19–30 inches (nose to tail base) |
| Tail Length | 12–16 inches |
| Height | 10–16 inches |
An average Maine Coon cat showing its height and length.
Male vs Female Maine Coon Size
Both male and female Maine Coons are larger than average cats and are noticeably different in size.
Size Comparison
- Males: Wider and heavier with a broader chest and thicker neck.
- Females: Still large and muscular, but a little smaller.
Their personalities are both gentle regardless of gender.
Size Comparison by Gender
Gender Comparison Table
| Gender | Weight Range | Build |
| Male | 13–18+ lbs | Broad & muscular |
| Female | 8–12 lbs | Lean but strong |
The size difference between male and female Maine Coons
How Big Do Maine Coon Kittens Get as Adults?
Maine Coons kittens start off small, but they grow much longer than the average cat.
Growth Stages
- 0-6 months: Rapid height and leg growth
- 6-18 months: Length increases significantly
- 18-36 months: Muscle and chest widen
- 3-5 years: Full adult size reached
Maine Coon Growth Chart by Age
How Long Does It Take a Maine Coon To Reach Full Size
Maine Coons are slow growers compared to other cats. Most cats are done growing at 1 year.
Changes in Body
- 0–6 months: Rapid growth
- 6–12 months: Muscle development begins
- 1–3 years: Body length increases
- 3–5 years: Full size reached
Why are Maine Coons so Big?
Maine Coons evolved naturally in cold climates, which led to:
- Larger bodies for heat retention
- Long tails for balance
- Thick coats and strong bones
Their size is genetic, not due to overfeeding.
Does Diet Affect Maine Coon Size?
Genetics determines potential size, while diet impacts healthy growth.
Diet Impact Points
- Muscle mass is increased by high protein.
- Balanced minerals protect joints.
Overfeeding does not make them bigger but only unhealthy For more detail check out Maine Coon Diet suggestions.
Are Maine Coons the Biggest Domestic Cats?
They are among the largest, but not always the heaviest.
| Breed | Size Comparison |
| Maine Coon | Longest & tallest |
| Ragdoll | Heavier but shorter |
| Savannah | Taller but leaner |
FAQs
How big is a full-grown Maine Coon?
Full-grown Maine Coons can weigh a maximum of 18 lbs and can reach nearly 30 inches in length and is thus, one of the biggest domestic cat breeds.
Are Maine Coons the biggest house cats?
They are the longest and tallest breeds, but others can be heavier.
Can Maine Coons grow over 20 pounds?
Yes, but it is uncommon and mostly genetic, not dietary.
Do Maine Coons need more space?
Yes. Because of their size, they need vertical space to climb, and larger litter boxes.
