Maine Coon Weight Calculator by Age
Find out the normal weight of your Maine Coon by age and sex
Maine Coon weight chart by month
| Age | Male (min) | Male (max) | Female (min) | Female (max) |
|---|---|---|---|---|
| 1 mo. | 0.6 | 0.8 | 0.5 | 0.7 |
| 2 mo. | 1.0 | 1.5 | 0.8 | 1.2 |
| 3 mo. | 1.5 | 2.3 | 1.2 | 1.8 |
| 4 mo. | 2.5 | 3.5 | 2.0 | 2.8 |
| 5 mo. | 3.0 | 4.2 | 2.5 | 3.5 |
| 6 mo. | 3.5 | 5.0 | 3.0 | 4.0 |
| 8 mo. | 4.5 | 6.0 | 3.5 | 4.8 |
| 10 mo. | 5.0 | 7.0 | 4.0 | 5.5 |
| 12 mo. | 5.5 | 8.0 | 4.5 | 6.5 |
| 1 yr | 6.0 | 9.0 | 5.0 | 7.0 |
| 2 yr | 6.5 | 10.0 | 5.0 | 7.5 |
| 3 yr | 7.0 | 11.0 | 5.0 | 8.0 |
| 4 yr | 7.0 | 12.0 | 5.0 | 8.5 |
Maine Coon weight: everything you need to know
The Maine Coon is one of the largest domestic cat breeds. Kittens are born weighing about 100-150 grams but grow much faster than other breeds. By 3 months a Maine Coon kitten can weigh 1.5-2.3 kg, comparable to an adult cat of a small breed.
Growth features of Maine Coons
Maine Coons have a long growth period. Unlike most breeds, which reach maturity at 1-2 years, Maine Coons keep growing until 3-4 years. Most weight gain happens in the first year of life, after which growth slows but does not stop.
Factors affecting weight
A Maine Coon's weight depends on several factors: genetics (parents' size), nutrition quality, health and living conditions. Males are usually much larger than females — the difference can reach 3-4 kg in adults.
When should you worry?
If your Maine Coon's weight differs from normal by 15-20%, it's a reason to see a veterinarian. Being underweight may indicate digestive problems or parasites, while being overweight may indicate improper nutrition or a sedentary lifestyle.
The numbers here are a breed guideline, not a medical norm: the spread in Maine Coons is wide, and the weight of the parents tells you more about a kitten than any table.
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