Since dogs come in so many different breeds and sizes, it’s impossible to identify an average weight for all dogs. Weight may also depend on the dog’s sex and whether they’ve been spayed or neutered.
Although many resources provide an average weight range for different breeds, it’s usually significant. These ranges often don’t take the dog’s sex and other factors into consideration.
For example, a typical weight range you might see for a Labrador Retriever is 55 to 80 pounds. That’s a big range, and most female Labs shouldn’t weigh 80 pounds. They should fall on the lower end of the range.
Weight ranges also don’t account for the many mixed breed dogs out there. Just because the typical range for a Lab is 55 to 80 pounds doesn’t mean your Lab mix will or should fall within that range. It will depend on the other breeds he’s mixed with.
Plus, what if you don’t know the breed make-up of your mixed-breed dog? What then? Most resources say to use the dominant breed, but even then, you’re guessing what that is. An average dog weight or range definitely doesn’t work for mixed breeds.