Cat age calculator
Convert your pet’s age to approximate human years.
Frequently asked questions
How old is a 1-year-old cat in human years?
About 15, using the International Cat Care chart. A cat reaches about 24 human years at age two. Each later cat year adds approximately four human years.
How old is a 5-year-old cat in human years?
About 36. Starting from 24 at two years, add four for each of the next three years.
Can I use this for a kitten?
Yes, from one month old. The kitten chart lists specific month-age comparisons, including three months at about four human years and six months at about ten. We estimate between the published points.
Do cat breeds need different formulas?
This calculator uses a general feline age chart rather than claiming breed-specific precision. Your vet can assess your individual cat’s development and health.