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Cat Age Calculator

Convert cat years to human years: 15 at one, 24 at two, then about 4 human years per cat year - with life stages from kitten to geriatric.

Cat age (years)

+ months

How to use it

Enter your cat's age.
See the human-age equivalent and life stage (AAHA/AAFP feline life stages).

How it works

Cats reach adulthood in their first two years (≈24 human years), then each year adds about 4. Life stages: kitten (0-1), young adult (1-6), mature adult (7-10), senior (over 10).

FAQ

How old is a 10 year old cat in human years?

About 56 human years.

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