how long do dogs live?

  It depends on the breed but smaller breeds tend to live longer, anywhere from twelve to fifteen years.
It depends on the breed, but the average healthy dog can live anywhere from 10-15 years.i have known dogs that have lived in their 20s. the oldest dog i had was 18 years old and he was in very good shape up until the last month of his life. there are many factors that can go into how long your dog will live, such as spaying/nuetrering, a good healthy diet, and lots of exercise. all of those things can lengthen the life of your dog, but accidents can always happen cutting the dogs life short, such as health problems.
I depends what sort of dog it is



Giant dogs (eg Saint Bernard, Newfoundland, Great dane etc) live about 8-10 years or so



Large Dogs (eg Labrador retriever, rotweiller etc) live from 10-13 years



Medium Sized Dogs (Eg. Shiba Inu, collie, beagle etc) live up to about 15 years



Small dogs (chihuahuas, Yorkshire terriers etc) can often live for 15 + years!
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This isn't exact as it depends on the dog
Varies, dog to dog and breed to breed, and on environmental factors such as diet and climate, in my experience anyway, average between 7 and 14 years, but the vast majority of dogs survive well into their teens, if they are well care for, and manage to aviod disease, traffic etc.
Different length for different breeds, and even within bloodlines. On average the smaller the breed, the longer they live for . Sadly cancer is claiming far too many dogs, too young, these days, just as with humans.
They die at various ages. Your question is the same as asking how long humans live.

Some live for a short time. Others live to a grand old age.
It varies from dog to dog. Some Breeds are known to live longer then others. And it depends on the dog's health, what he's been feed, etc.
It usually depends on the breed and size of the dog as well as how healthy it's diet is. Do you know what breed you are asking about?
The average lifespan for a dog is from about 13-15 years.
approx 12-15 years but if your lucky and you have an ultra healthy dog they could live up to 18!!!:)
Anytime from a few minutes to over 20 yrs!
13 - 15 years
too long.
120yrs