🐶 Dog Age Calculator
How old is your dog in human years? Enter their age and size below for a science-based result — the old "multiply by 7" rule isn't accurate.
⚕️ This tool is for informational purposes only. Always consult your veterinarian for health advice specific to your pet.
Why the 7x Rule Is Wrong
Dogs age much faster in their early years and slower later on. A 1-year-old dog is roughly equivalent to a 15-year-old human, not a 7-year-old. Size also matters — large breeds age faster than small breeds.
This calculator uses size-adjusted aging curves based on published veterinary research to give you a more accurate result.