These are averaged:
American Cocker Spaniel
10 - 12 years
Beagle
11 - 13 years
Bichon Frise
10 - 13 years
Border Collie
12 - 14 years
Boxer
9 - 11 years
Cavalier King Charles Spaniel
10 - 12 years
Chihuahua
13 - 15 years
Collie (Rough)
9 - 11 years
Doberman Pinscher
8 - 10 years
English Springer Spaniel
10 - 12 years
German Shepherd
10 - 12 years
Golden Retriever
10 - 13 years
Great Dane
7 - 10 years
Irish Wolfhound
6 - 7 years
Jack Russell Terrier
13 - 15 years
Labrador Retriever
10 - 12 years
Lhasa Apso
12 - 15 years
Maltese
11 - 13 years
Miniature Schnauzer
12 - 14 years
Poodle (Miniature)
12 - 15 years
Poodle (Standard)
10 - 12 years
Poodle (Toy)
12 - 15 years
Pugs
10 - 12 years
Rottweillers
8 - 10 years
Shetland Sheepdog
10 - 12 years
Shih Tzu
10 - 12 years
West Highland White Terrier
10 - 12 years
Yorkshire Terrier
11 - 13 years
It depends very much on the breed of dog. larger dogs tend to have shorter lives than smaller ones. The average life span of a dog is about 10-13 years for a average size dog.