Dog Years Calculator
Convert your dog's age to human years using the updated logarithmic formula.
How to use this tool
- Enter dog age in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your human age equivalent and the full breakdown beneath it.
Find out how old your dog is in human years using the modern logarithmic formula.
Frequently asked questions
- How old is my dog in human years?
- The modern formula is 16×ln(dog age)+31, which better reflects canine ageing than the old 7× rule. A 5-year-old dog is equivalent to about 57 in human years.