Add months for a more precise result
Cats grow up fast: the first year equals about 15 human years, and by age 2 a cat is roughly 24 in human years. After that, each cat year adds about 4 human years. The chart below follows the conversion commonly used by International Cat Care and the American Association of Feline Practitioners (AAFP).
| Cat age | Human age | Life stage |
|---|
Kitten (under 1) The fastest growth of their life. Vaccinations, the timing of spay/neuter and early socialization shape the adult cat.
Young adult (1β6) Peak energy and curiosity. Weight gain after neutering is common, so portion control matters.
Mature adult (7β10) Often looks just as healthy, but changes begin inside. Watch weight, water intake and litter box habits.
Senior (11+) Kidney, thyroid, joint and dental issues become more common. More frequent vet checkups are generally recommended.
Q. How old is a 1-year-old cat in human years?
About 15. In the first year a cat grows all the way to adolescence.
Q. Is 10 old for a cat?
About 56 in human years, the last year of the mature stage. Many indoor cats live past 15 today.
Q. I don't know my rescue cat's age.
A vet can estimate age from teeth, eyes, coat and muscle condition.
β» Human-age equivalents are averages and vary with breed, health and lifestyle. Ask your vet about health decisions.