Determining your cat's age is not easy if you don't have a kitten. Usually for kittens veterinarians can determine roughly how old it is by the ratio of kitten teeth they have to permanent teeth. This method also only works on kittens at the age of 4 months and under. Radiographs, or x-rays, can be used for kittens at the age of 6 months and under to see how far along they are in their bone growth process.

For older cats we can only guestimate their ages by the wear and tear on their teeth. Supposedly the older a cat is the more tear it will have on it's teeth (makes sense!) However, this is not always reliable since some cats chew on bones and other hard things while others get a lot of wet food. It all depends on the breed and diet of the cat.

There is also no equivalency between a certain amount of human years to a certian amount of cat years. For dogs it is said that for every

one human year a dog ages 7 years but that is not so for our feline friends! Below I have included a cat age calculator provided by AJ Design Software which can roughly estimate how old your cat is equivalent to human years. Remember, this is really just an estimate and many people who take in cats from the street never find out just exactly how old their new friends are.