Cat Age Calculator
Convert cat years into an approximate human-age equivalent.
Quick answer: enter your details below and click Convert Cat Age — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Enter your cat's age in years.
- Click Convert Cat Age.
- Use the result as a rough life-stage guide.
About this tool
Enter your cat's age in years and the tool converts it using the common guide of 15 human years for year one, 24 by year two, and 4 more per year after. This is an approximate guide, not a medical measure, and individual cats age at different rates.
Frequently asked questions
Is this exact?
No. It is a widely used approximation. Breed, health, and lifestyle all shift real ageing.
At what age is a cat a senior?
Roughly from 11 years, or about 60 human years on this guide, when vet checks usually become more frequent.