
Horses are measured by the width of a human hand - 4 inches or 10 centimetres. Measurement is taken from the ground up to the withers, the highest point on the horse's shoulder. A light horse such as a Lipizzana measures between 15.1 and 16.2hh while a heavy horse such as a Shire is between 16.2 and 17.2hh. Ponies are under 14hh.