Research shows that one and a half years old for a cat is equivalent to about 20 years old for a human. At this time, the cat is already in adulthood. From the time a cat is two years old, every 1 year increase is equivalent to 4 years of human growth. Cats have entered old age at about 10 years old. Cats that live to 16 years old are considered to have a long life.

The life span of cats is generally about 12-15 years, and some long-lived cats can live up to about 18-20 years. The length of its lifespan is related to many aspects, such as feeding methods, living environment, etc., so if you feed it scientifically, you can extend the lifespan of your cat.

The specific age stages of cats are as follows:

1 and a half months is 4 years old, 3 months is 6 years old, 6 months is 10 years old, 9 months is 13 years old, and 1 year is 15 years old, 2 years is 24 years old, 3 years is 28 years old, 4 years is 32 years old, and 5 years is 36 years old.

6 years is 40 years old, 7 years is 44 years old, 8 years is 48 years old, 9 years is 52 years old, 10 years is 56 years old, 11 years is 60 years old, 12 years is 64 years old, 13 years is 68 years old in 2014, 72 years old in 2014, 76 years old in 2015, 80 years old in 2016, and 84 years old in 2017. It will be 88 years old in 18 years, 92 years old in 19 years, 96 years old in 20 years, and 100 years old in 21 years.