Cat age calculator

How old your cat is in human years.

Age

Enter an age to see your cat in human years.

An estimate. Published charts vary.

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How we estimate

A cat's first two years count as about 24 human years (15 at one year), and each year after as about 4.

Life stages follow the 2021 AAHA and AAFP feline guidelines.

An estimate. Published charts vary.

Sources

  • International Cat Care, "How to tell your cat's age in human years"
  • 2021 AAHA/AAFP Feline Life Stage Guidelines

Questions

Is one cat year seven human years?

Not quite. A cat reaches about 15 human years in its first year and about 24 by two, then about 4 human years for each year after.

When is a cat a senior?

Over 10 years, in the 2021 feline life stage guidelines. From 7 to 10 a cat is a mature adult.

Is there one for dogs?

Yes, the dog age calculator, which also asks for size.

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