when is a kitten considered a cat

A kitten is generally considered an adult cat around the time it turns one year old. Most kittens reach adulthood by their first birthday, although some larger breeds, like Maine Coons, may take longer—up to 18 months to 2 years—to fully mature. During this transition period, kittens undergo significant physical growth and behavioral development. By one year, they usually reach their full size and have changed their nutritional needs, shifting from kitten food to adult cat food. Behaviorally, even after reaching adulthood, cats may remain playful and energetic but typically less so than they were as kittens. Proper socialization during the kitten stage helps them grow into confident and well-behaved adult cats. Some cats may continue to retain kitten-like behaviors even past maturity, but from a physical and nutritional standpoint, one year is the common marker for being considered an adult cat.