<P> The life expectancy of a cat that is living indoors is typically 12--16 years . The life expectancy of a cat living outdoors is typically 2--5 years . Cats living outdoors usually have a much shorter life expectancy and increased mortality due mainly to external environmental conditions and dangers such as traffic accidents, intentional acts of violence, poisoning, diseases from other cats, fighting with other animals, and predation . However, some cats may attain the age of 21 years or more . </P> <P> The oldest cat ever recorded was Creme Puff, who died in 2005, aged 38 years, 3 days . </P>

How old is a 18 year old cat in cat years