Every fur parent wants to assure that their little pup is growing and weighing just right. Now, not all puppies are the same, especially if you compare a Chihuahua to a St. Bernard! This 2004 study shows Body-Weight Changes during Growth in Puppies of Different Breeds. Heres a handy dog weight chart for the toy, small, medium, large, and giant breeds so you can quickly check if your puppy is on the right track concerning ideal weight.