How much do cats grow until they reach adulthood? - briefly
Cats typically reach their full adult size by around one year of age. However, some larger breeds may continue to fill out and mature physically for up to two years.
How much do cats grow until they reach adulthood? - in detail
Cats, like humans and many other mammals, experience significant growth during their early years before reaching maturity. The pace and duration of this growth can vary depending on several factors, including breed, genetics, and overall health.
From birth until around 6 months of age, kittens undergo rapid physical development. During this period, they typically double or even triple their birth weight. For instance, a newborn domestic cat might weigh between 3 to 5 ounces (85 to 142 grams) at birth and grow to about 2 pounds (0.9 kilograms) by the time they are 6 months old.
After reaching 6 months, the growth rate begins to slow down but continues steadily until the cat reaches adulthood, which is usually around 12 months for most breeds. By this age, cats have attained about 95% of their adult weight and size. For example, a domestic shorthair cat might weigh between 8 to 10 pounds (3.6 to 4.5 kilograms) at one year old, which is close to its full adult weight.
However, it's important to note that some larger breeds, such as Maine Coons and Savannahs, may take up to 2 or even 3 years to reach their full adult size and weight. These breeds are known for their extended growth periods, with males often being significantly larger than females.
In addition to physical size and weight, cats also undergo significant development in other areas during this growth period. Their teeth, bones, and muscles continue to develop and strengthen, while their senses, such as sight and hearing, become fully functional. Their fur coat may also change color or texture as they mature.
Regular veterinary check-ups are essential during a cat's growth phase to monitor its development and ensure it is meeting appropriate milestones. Proper nutrition, exercise, and overall care play crucial roles in supporting healthy growth and helping cats reach their full potential as adults.