answersLogoWhite

0

You can tell your cat is fully grown when it sits around all day. Adult cats are a lot more calm than young cats and tend to sleep more than younger ones.

Improved Answer:

Cats are usually considered "adult" when they reach a year or a year and a half years of age as this is when they have finished growing and developing. It is true that a year-old cat is usually calmer than a 6 month old kitten.

User Avatar

Wiki User

15y ago

What else can I help you with?