A kitten will grow at a rate of around 1 to 3/4 inches per week. If you provide your cat with adequate nutrition and clean, sanitary living conditions (i.e., an indoor-only environment), it should reach adult size in approximately one year.
How old is too old for a kitten?
Kittens under 12 weeks of age are encouraged to be adopted into forever homes due to the developmental stages they may not have reached physically or emotionally. It is illegal in most states for people younger than 18 years of age to adopt kittens because their inexperience can make them vulnerable to harm from predators such as dogs or coyotes, both which are common threats throughout the U.S.. Kittens under 12 weeks may not be legally sold by pet shops since they cannot test negative for feline leukemia virus (FeLV) – the most commonly identified communicable disease among cats nationwide – through required blood tests during routine health examinations before adoption. However, even if FeLV testing becomes mandatory for all adopters who sell kittens under 12 weeks of age within 24 months after adoption, this law would only come into effect in many states after this time period has elapsed; therefore there is no legal requirement that any prospective buyers must wait until then before adopting young kittens or cats out on their own initiative.
What do I need to know about declawing my cat?