How old is your dog in human years? An age converter can give a rough comparison, but it cannot measure your dog’s health or predict how long they will live. Breed, size and individual development all matter.
Use the dog-age calculator
Open the dog-age calculator and current guide. The guide explains how to interpret the estimate and includes our downloadable factsheet.
Prefer a simple age chart?
Our dog-age comparison table provides approximate human-age equivalents from the American Veterinary Medical Association for a medium-sized dog. It is a reference chart, not an exact conversion for every breed.
The familiar “multiply by seven” shortcut does not reflect how quickly dogs develop early in life. For decisions about nutrition, exercise, mobility or other health changes, ask your vet to assess your individual dog.
This April 2014 resource was reviewed in October 2026. Its original missing image-based converter has been replaced with links to the working calculator and a readable comparison table.
