The age of a cat is very different from that of a human. One year of a cat is equivalent to 15 years of a human. After a cat is 2 years old, the age of a cat increases by an average of 4 years every year. Generally, the lifespan of a cat is about 12 to 16 years. A 16-year-old cat is equivalent to an 80-year-old human.

Convert cat age to adult age

1 and a half months = 4 years old; 3 months = 6 years old; 6 months = 10 years old; 9 months = 13 years old; 1 year = 15 years old;

2 years = 24 years old; 3 years = 28 years old; 4 years = 32 years old; 5 years = 36 years old; 6 years = 40 years old;

7 years = 44 years old; 8 years = 48 years old; 9 years = 52 years old; 10 years = 56 years old; 11 years = 60 years old;

12 years = 64 years old; 13 years = 68 years old 14 years = 72 years old; 15 years = 76 years old; 16 years = 80 years old;

17 years = 84 years old; 18 years = 88 years old; 19 years = 92 years old; 20 years = 96 years old ; 21 years = 100 years old.