Cat Age Calculator

Convert Cat Years to Human Years

Enter Your Cat's Age:

Years

Understanding Cat Ages

How Cat Aging Works

Cats age differently than humans, with their first two years being equivalent to about 24 human years. After that, each cat year equals about 4 human years. This calculator uses the following formula:

First year = 15 human years
Second year = Additional 9 years (total 24)
Each year after = 4 human years

Cat Life Stages

Kitten (0-1 year): Rapid development phase
Junior (2-3 years): Peak physical condition
Adult (4-10 years): Mature period
Senior (11+ years): Entering golden years