I can't. One can look at the parents and assume that is pretty close to what your dog will look like. There is always an exception. For example, a guy I work with bought a German shorthaired puppy from a well known, very respected breeder. The breeder specialized in hunting stock. Exactly what he wanted as he is an avid Hunter. At two years old he was a bit over 30 inches at the withers. That is in great Dane size area. The parents were is normal size as we're all the other pups in the litter.