Convert your dog's age to human-equivalent years based on breed size. More accurate than the old "times 7" rule. Pure client-side.
The old rule of multiplying dog years by 7 is overly simplistic. In reality, dogs age rapidly in their first two years, and the rate varies significantly by breed size. Small dogs tend to live longer and age more slowly after adulthood, while large and giant dogs age faster and have shorter lifespans. This calculator uses veterinary research-based estimates to convert your dog's chronological age into human-equivalent years, adjusted for their size category.