Someone who is 75, on the other hand, is only 12 in dog years.
Using the simple 7:1 ratio, this same 10-year old dog would be the equivalent of a 70-year old human.
12 dog years = 77 years. 13 dog years = 82 years. 14 dog years = 88 years.
420 Dog years old, 60 yrs old b-day equivalent in human age.
For example, a 12 year old dog will be nearly 71 in human years.
The first year of a dog's life is equal to 15 human years. The second year of a dog's life is equal to about nine human years. Each additional year is equal to about four or five human years.
Retired: Our older dogs usually retire from work around 9 to 11 years of age.
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 greatest reliable age recorded for a dog is 29 years and 5 months for an Australian cattle dog named Bluey, owned by Les Hall of Rochester, Victoria. Bluey was the name of the oldest dog ever reliably recorded. She was an Australian cattle dog, and she lived to be 29 years and 5 months.
Current guidelines now conclude the following : 15 human years equals the first year of a small-large sized dog's life. A 2-year-old dog is equivalent to 9 human years. And after that, each human year would be approximately five years for a dog.
The Average Dog Lifespan
The average lifespan for dogs is between 10-13 years, though there is variability among breeds and sizes.
Dogs can live up to 14 years (some even longer) and are considered seniors at age 7. Smaller dogs typically have longer lifespans than larger dogs. Puppies are not a great choice for most seniors because they need to be housebroken and can be destructive, requiring continuous monitoring.
This would make a 10-year-old dog 55, 60, 65, or 75, depending on his size. At 14 years they would be 77, 84, 91, and 105 respectively, which seems about right to me.
Well, dogs are in possession of faster metabolisms and hearts that work harder than our own. Because of all this extra work, dogs age faster and, consequently, live shorter lives. It also means they grow up more quickly. A dog that's a year old is the equivalent of a human child ready to start school.
A 13- to 15-year-old dog, depending on her size and health, is roughly equivalent to a 70- to 115-year-old person. In her elder years, it is harder for your dog to learn new things.
So a 7-year-old dog would be roughly 62.1 human years old.