The decimal centimetre measurement being the more modern way to measure a horse but quite a few horse owners struggle to compare the two measurements. Horses and ponies are measured in either hands high (hh) or centimetres (cms). Your horses weight measurement should be used to calculate how much feed it needs as well as dosage for worming and other medications.Īnd knowing your horses’ height is very important if you are considering selling your horse or entering certain classes of equestrian competition, particularly showing classes. Why measure your horse or pony’s height and weight … Because all caring horse owners should know how to measure their horse and certainly at least, how to estimate your horses weight or specify its height.