Dog Age Calculator
Convert your dog's age to human years using the modern formula based on breed size.
Years
Months
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How Dog Years Really Work
The old "1 dog year = 7 human years" rule is outdated. Dogs age much faster in their first two years, then the rate varies by size. Small dogs tend to live longer and age more slowly after maturity, while giant breeds age faster in their later years.
FAQ
Why does breed size matter?
Larger dogs age faster after their second year. A Great Dane ages about 7 human years per dog year, while a Chihuahua only ages about 4.
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