Breed standards for Chihuahuas do not generally specify a height, only a weight and a description of their overall proportions. As a result, height varies more than within many other breeds. Generally, the height ranges between six and ten inches; however, some dogs grow as tall as 12 to 15 inches (30 to 38 cm). Pet-quality Chihuahuas (that is, those bred or purchased as companions rather than show dogs) often range above the weights 1.5 to 3.0 kg (3.3 to 6.6 lbs), even above ten pounds if they have large bone structures or are allowed to become overweight. This does not mean that they are not purebred Chihuahuas - Oversized Chihuahuas can be seen in some of the best bloodlines. Typically the breed standard for both the long and short coat Chihuahua will be identical except for the description of the coat.
A Chihuahua must be chosen with care, as the temperament of its owner(s) can make a difference in the temperament of the pup. Chihuahuas love their dens and will often burrow themselves in pillows, clothes hampers, and blankets. You’ll often find them under the covers or at the bottom of the bed, deep in the dark and safety of what they believe is their den.