Dog Age Calculator
Convert your dog's age to human years with breed size adjustment.
About this Calculator
The old "multiply by 7" rule for dog years is oversimplified. Dog aging varies significantly by size: small breeds live longer and age more slowly, giant breeds age faster. This calculator uses updated research on dog aging rates by size category (small under 20 lbs, medium 20–50 lbs, large 50–100 lbs, giant over 100 lbs) to give a more accurate human-years equivalent for your dog's age. Fun but scientifically grounded.
dog agedog yearshuman yearspet agedog calculator