How Old Is a 3-Year-Old Cat in Human Years?
A 3-year-old cat is a prime adult and is roughly equivalent to a human in their late 20s.
How to use this tool
- Enter cat age in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your human age equivalent and the full breakdown beneath it.
Convert your 3-year-old cat's age to the equivalent human age using this calculator.
Frequently asked questions
- How old is my cat in human years?
- The first year of a cat's life equals about 15 human years, the second equals another 9, and each subsequent year equals about 4 human years.