Cat Age Calculator
Cat Years → Human Years
Human Years → Cat Years
Formula
Year 1 = 15 human years. Year 2 = +9 human years (total 24). Each year after = +4 human years. Based on AAHA/AAFP guidelines.
Frequently Asked Questions
How do you convert cat years to human years?
The first year of a cat's life equals approximately 15 human years. The second year adds about 9 more human years (totaling 24). After that, each additional cat year equals roughly 4 human years. This is based on AAHA/AAFP feline life stage guidelines.
What are the cat life stages?
Cats go through six life stages: Kitten (0-6 months), Junior (7 months-2 years), Prime (3-6 years), Mature (7-10 years), Senior (11-14 years), and Geriatric (15+ years). Each stage has different nutritional and veterinary care needs.
Do indoor cats age differently than outdoor cats?
Indoor and outdoor cats age at the same biological rate, but indoor cats typically live much longer (12-18 years vs. 5-10 years for outdoor cats) because they face fewer hazards such as traffic, predators, diseases, and extreme weather.
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