Dog Age Calculator
Convert your dog's age to human years using the updated scientific formula based on breed size.
π How We Calculate — Learn about our calculation methodology, data sources, and quality standards.
Frequently Asked Questions
Why do small dogs live longer?
Smaller dogs have slower metabolic rates relative to body size, less stress on organs, and lower cancer rates. A Chihuahua can live 15-20 years while a Great Dane averages 7-10.
Is the 7-year rule accurate?
No. A 1-year-old dog is more like a 15-year-old human. The 7x rule was a rough average that does not account for the rapid early development or size differences.