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Convert dog years to human years using the latest veterinary science.
Your dog in human years
39
Life stage: Adult
Pro includes breed-specific health milestones, vet visit reminders, and nutrition guidelines by age.
No - the old 'multiply by 7' rule is inaccurate. Dogs age faster in their first 2 years, then slow down. A 2-year-old dog is roughly equivalent to a 42-year-old human, not 14.
Yes - small dogs tend to live longer and age more slowly after maturity. A 10-year-old Chihuahua is roughly 56 in human years, while a 10-year-old Great Dane is about 66.
The 2019 UC San Diego study found that dog aging follows a logarithmic curve: human_age = 16 × ln(dog_age) + 31. This tool also adjusts for breed size.
Dog Age Calculator is part of BriskTool's collection of free online tools. All processing runs entirely in your browser for maximum privacy and speed.