Weight
Maine Coon weight chart
America's native longhair, one of the largest domestic cats with a rugged build and sociable nature. Known for chirping, trilling, and loving water.
Gentle, friendly, dog-like, and intelligent.
Adult reference weight is 9 to 25 lb. The breed record lists 12 to 18 years.
Breed record origin is United States.
The breed record marks Maine Coon as a fit for a first-time owner.
How much does a Maine Coon weigh?
| Age | Female | Male |
|---|---|---|
| 8 weeks | 2.3 lb1.8 to 2.9 | 2.5 lb2 to 3.1 |
| 12 weeks | 3.3 lb2.7 to 4 | 3.8 lb3.1 to 4.4 |
| 16 weeks | 4.4 lb3.5 to 5.3 | 5.1 lb4 to 6.2 |
| 24 weeks | 7.5 lb6 to 9 | 8.8 lb7.1 to 11 |
| 36 weeks | 9.9 lb7.9 to 11.9 | 13 lb9.9 to 16.1 |
| 1 year | 11.5 lb9 to 14.1 | 16.5 lb13 to 19.8 |
| 18 months | 12.1 lb9.9 to 14.1 | 18.7 lb15 to 22.1 |
| 3 years | 13 lb10.6 to 15 | 20.9 lb17 to 24.9 |
| 5 years | 13 lb10.6 to 15 | 22.1 lb18.1 to 24.9 |
Breed weight ranges are a reference, not a diagnosis. Ask a vet before you treat a number as a problem.
Maine Coons mature slowly (3-5 years). WALTHAM curve underestimates adult size. Use BCS with vet.
The curve comes from CFA Maine Coon breed standard + breeder growth references (scaled from WALTHAM for kitten phase). WALTHAM dataset
Food
Large portions high-protein; joint supplements for size.
Home
Space to climb; indoor with access to outdoors if safe.
Company
Family-oriented; great with dogs and kids.
Coat
Daily brushing during shed.
What tends to stress them
- Small spaces
- Loneliness
- Heat
Breed risks to mention to a vet
- Hip dysplasia
- Hypertrophic cardiomyopathy
- Spinal muscular atrophy
A breed risk is not a diagnosis for your cat.
More breed charts
Plants, food, and household hazards
Check your entire room for hidden cat hazards in 10 seconds
Pick a room. These items are in the Borzi reference, and they hide in ordinary houses.
Open in Borzi