Convert your cat's age into human years — and find out exactly which life stage they're in. Results in seconds.
Enter your cat's age to see their age in human years
The old rule that one cat year equals seven human years is inaccurate. Cats mature far faster in their first two years.
A kitten races to maturity. By their first birthday, a cat is roughly equivalent to a 15-year-old human.
The second year adds about 9 more human years, so a 2-year-old cat is comparable to a 24-year-old person.
From age two onward, every additional cat year adds roughly four human years — the basis of this calculator.