Cat To Human Years Old. 5 cat yeas = 36 human years Randa is a writer & former assoc.
So, 1 cat year = 15 human years. Then, for each year after the first two, equate each cat year to about four human years. For a cat that is over two years old, the equation.
* 1 year 2 years 3 years 4 years 5 years 6 years 7 years 8 years 9 years 10 years 11 years 12 years 13 years 14 years 15 years 16 years 17 years 18 years 19 years 20 years
The calculation is based on the comparative ages when cats and humans reach maturity. Of course, there are some differences in age conversion, depending on breed and weight and other factors, but this chart gives you a general idea. The first year of a cat´s life is equivalent to 15 human years whilst the second year is. She's also mom to 1 corgi & 2 orange cats.