Cat Years Calculator
Convert your cat's age to human years. Uses the standard veterinary conversion scale.
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.
Find out how your cat's age compares to human years.
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.