Dogs live 10 years equal to about 55 years of age of humans, this time the dog has entered old age, is considered to live longer. A dog is 15 years old is equal to 76 years old for humans, and a dog is 20 years old is equal to 100 years old for humans. The life expectancy of dogs is very short compared to humans. The average life expectancy of a dog is 8-12 years. It varies greatly by breed, with large dogs having a slightly shorter life span than small dogs. For example, Pomeranians, Maltese and Poodles usually have a life expectancy of 9-13 years; medium-sized dogs such as the Miguel, Shiba Inu and American Cocker Spaniel have a life expectancy of 9-11 years; large dogs like Huskies, Labradors and Dalmatians have a slightly shorter life expectancy, with a life expectancy of 7-10 years.
