Biology

CatAgeCalculator

Convert your cat's age to human years with accuracy based on lifestyle.

Enter Your Cat's Age

Indoor cats typically live longer than outdoor cats

Enter your cat's age to see results

How It Works

Cats age rapidly in their first two years (equivalent to 25 human years), then age about 4 human years for each additional cat year. Indoor cats typically live 12-18 years, while outdoor cats average only 2-5 years due to environmental hazards.

Caring for Senior Cats

Cats over 10 years need regular veterinary checkups, modified diets, and comfortable accommodations. Watch for changes in behavior, appetite, or mobility that may indicate age-related health issues.

Understanding Cat Aging

Cats age differently than dogs. In their first year, they reach the equivalent of about 15 human years. The second year adds another 9 years. After that, each cat year equals about 4 human years. Indoor cats generally live longer than outdoor cats due to reduced exposure to hazards.

Indoor vs Outdoor Cats

Indoor12-18 years

Lower risk of injury and disease

Outdoor2-5 years

Higher risk of injury and disease