Cats age in human years by a method where the first two years of a cat's life roughly correspond to the first 25 human years, with the first year being about 15 human years and the second adding 9 more to total 24 human years by age two. After the second year, each additional cat year is approximately equivalent to 4 human years. For example, a 6-year-old cat would be about 40 in human years.
Cat to Human Years Conversion
- 1 cat year ≈ 15 human years
- 2 cat years ≈ 24 human years
- Each year after 2 ≈ 4 human years added
Typical Human Age Equivalents for Cats
Cat Age| Human Age Equivalent
---|---
1 year| 15 years
2 years| 24 years
3 years| 28 years
4 years| 32 years
5 years| 36 years
6 years| 40 years
10 years| 56-60 years
15 years| 76-83 years
This approach is a general guideline and does not account for variations by breed or individual health but is widely used to understand a cat's maturity relative to humans. Indoor cats tend to have longer lifespans than outdoor cats, which can impact age comparisons in human years as well.