The easiest way to tell if you dog is the right weight is by touch.  Press your hand along the outside of your dogs ribcage.  If you have to press very hard to feel ribs or if you cannot feel the dogs ribs, most likely your dog is overweight or obese.  If your dogs ribs are easily definable or they protrude, your dog is most likely underweight.  It’s best if you can feel the ribs just a bit. 

If you have any concerns please refer to my article on dog obesity at www.ezinearticles.com  Just like us, dog weights can have a range but in if a dog falls too far overweight or underweight it can lead to more serious health conditions.