how much does a pony weigh
Height doesn't matter as much for the horses health, but it can affect how you feel when you ride. most 12 hand ponies will weigh between 600 and 700 lbs unless he is a draft mix then add 150 lbs. The average weight of a 14 hand Quarter horse is 900lbs. I would say something near 600 pounds. My 12.3 hh pony is about 650, and he's about as chunky as your pony.