Cat age in human years
Enter your cat's age in years and months and see how old it is in human years, plus its life stage. No sign-up, nothing is sent.
Result
–
Rough rule of thumb for comparison, not a veterinary statement. For your cat's health, ask your vet. As of: 11/2026. No warranty.
For you and your cat
Own offer
Pfotentakt cat profile
Printable cat profile with age, vaccinations and quirks (PDF, German) – buy once, no subscription.
Own offer
Pfotentakt cat diary
Printable cat diary with daily and weekly pages (PDF, German) – buy once, no subscription.
Frequently asked questions
How old is my cat in human years?
By the usual rule of thumb the first cat year equals about 15 human years, the second adds 9 (24 in total) and every further year counts about 4. A 10-year-old cat would be around 56.
Is the old "times 7" rule right?
No, it is too rough. Cats are fully grown after one year and age more slowly afterwards than "times 7" suggests.
When is a cat a senior?
As a guide, cats count as mature from about 7 years and as seniors from about 11 years. Every cat ages differently.
Is this a health value?
No. The number is for comparison and not a veterinary statement. For health questions ask your vet.