Rabbit Information Service

Cat Information Pages - Cat years of age compared to human years

How old are your cats in human years? Animal health journals and vets agree comparing cat years to human years uses a subjective formula. The cats aging process is similar to our human aging process. However sources say the aging process differs between humans and cats especially towards the end of a cat's life. This may be because the aging process is not linear. For example, a cat ages 13 human years in its first 6 months, 8 human years in the second six months, 10 human years in the second 12 months, and approximately 3 cat years for each subsequent human year.

Please note that the figures in the following table are "average".

Cat 1 mth 2 mths 3 mths 4 mths 5 mths 6 mths
Human 6 mths 10 mths 3� yrs 5� yrs 8� yrs 13 yrs

Cat 1 yr 2 yrs 3 yrs 4 yrs 5 yrs 6 yrs 7 yrs
Human 21 yrs 31 yrs 35 yrs 38 yrs 42 yrs 45 yrs 49 yrs

Cat 8 yrs 9 yrs 10 yrs 11 yrs 12 yrs 13 yrs 14 yrs
Human 53 yrs 56 yrs 59 yrs 62 yrs 65 yrs 68 yrs 71 yrs

Cat 15 yrs 16 yrs 17 yrs 18 yrs 19 yrs 20 yrs 21 yrs
Human 74 yrs 77 yrs 80 yrs 83 yrs 86 yrs 95 yrs 97 yrs






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