Cat's Age Human's Age
6 months 10 years
8 months 13 years
1 year 15 years
2 years 24 years
4 years 40 years
8 years 48 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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