Cat's Age	Human's Age
6 months	10 years
8 months	13 years
1 year	15 years
2 years	24 years
4 years	32 years
6 years	40 years
8 years	48 years
10 years	56 years
12 years	64 years
14 years	72 years
16 years	80 years
18 years	88 years
20 years	96 years
21 years	100 years
It was once thought that 1 year in the life of a cat was equivalent to 7 years of a human life. Recently, a new scale has been accepted:  after the first 2 years, the cat's life proceeds more slowly in relation to human life and each feline year is approximately  4 human years. The general consensus is that at about age 7 a cat can be considered "middle-aged," and age 10 and beyond "old."

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