Pets age differently than humans. One year for a dog is not equal to one year for its human owner. The American Veterinary Medical Association AVMA has guidelines on how to calculate dog years to human years. 

Dog Years to Human Years

As a general guideline, though, the American Veterinary Medical Association breaks it down like this:

  • 15 human years equals the first year of a medium-sized dog’s life.
  • Year two for a dog equals about nine years for a human.
  • And after that, each human year would be approximately five years for a dog.

The American Kennel Club explains that “there are many several factors to consider, so it’s not possible to pin it down precisely, but the AVMA says: “Cats and small dogs are generally considered ‘senior’ at seven years old, but we all know they’ve got plenty of life left in them at that age. Larger-breed dogs tend to have shorter lifespans compared to smaller breeds and are often considered senior when they are 5 to 6 years of age. The ‘senior’ classification is based on the fact that pets age faster than people, and veterinarians start seeing more age-related problems in these pets. Contrary to popular belief, dogs do not age at a rate of 7 human years for each year in dog years”.

“Size and breed also play a role. Smaller dogs tend to live longer than larger ones, but they may mature more quickly in the first few years of life. A huge pup might age more slowly at first, but be nearing middle age at 5. Tiny and toy breeds don't become "seniors" until around age 10. Medium-sized pooches are somewhere in the middle on both counts,” reports Pets.WebMd.com.

Here is a chart to help you gauge your dog’s age in human years

Source: www.Pets.webmd.com

If you are in doubt about the age of your dog, consult your Veterinarian? They have telltale signs that can help you identify your pet’s true age.

Animal Care Center in Smyrna, GA, is owned and operated by Otto H. Williams, DVM. The veterinary practice specializes in complete healthcare for cats and dogs and offers services including preventative, surgical and nonsurgical care, internal medicine, grooming and boarding to Cobb County and surrounding cities such as Vinings, Marietta, Mableton and Sandy Springs. Call today at 770.438.2694 or request an appointment.