Dog years are calculated differently based on your dog's breed size. The American Veterinary Medical Association (AVMA) uses a more accurate formula that accounts for the fact that dogs age faster in their early years and slower as they get older. Small dogs tend to live longer than larger breeds, which is why we ask for your dog's breed size.

Tail of Time provides accurate dog age calculations based on the latest veterinary research. We track all your dog's birthdays, both in human and dog years, and help you celebrate their milestones. It's free, easy to use, and helps you understand your furry friend's age better.

Yes! Tail of Time is completely free to use. We believe in making pet care information accessible to everyone. You can add as many dogs as you want and track their ages without any cost.