Cat Age Calculator

A one-year-old cat is like a 15-year-old teenager, and a two-year-old is like a young adult of 24. After that, each cat year counts as about four human years.

How to use it


  1. Type your cat's age in years and months.
  2. Read the age in human years and the life stage.
  3. Use the chart to compare with other ages.

Frequently asked questions


How do you convert cat years to human years?
International Cat Care counts the first two years of a cat's life as 24 human years, 15 of them in the first year, and every year after that as 4 human years.

What are the life stages of a cat?
Kitten up to 6 months, junior from 7 months to 2 years, adult from 3 to 6, mature from 7 to 10, senior from 11 to 14 and super senior from 15 years on.

How long do cats live?
On average around 12 to 14 years, and it is not unusual for a cat to reach its late teens or early twenties with good care.

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