The average lifespan of a cat is typically between 12 and 17 years. However, this number can vary depending on a number of factors, including genetics, living environment, health condition, and whether or not the cat receives regular veterinary care. Unspayed female cats generally live longer, potentially reaching 15 to 17 years, while spayed male cats tend to live slightly shorter lives, around 13 to 15 years.

Indoor cats typically live longer than outdoor cats because they are less likely to be threatened by traffic accidents, diseases, and predators. Additionally, purebred cats like the British Shorthair may have an average lifespan of around 11 to 12 years, while foreign shorthairs may have a slightly shorter lifespan of about 6 to 7 years.