When is a horse considered full grown?

Question

When is a horse considered full grown?

Answer 1

It depends on breeds and lineage. Some horses aren't full grown until 10 or 12 years of age (like the Lippizans of the Spanish Riding School). Other's are considered full grown around 3 (like racing thoroughbreds).

Answer 2

It really depends on the breed.  Like other domesticated animals, different breeds mature at different rates.

Answer 3

When it's 18, then it has the right to live whichever way it chooses. It can even move out of it's parent's stable.

Answer 4

Depends what sort of horse it is and how big it is but... A horse is considered fully grown on average age of 4 to 5. Horse evolution caused a reduction in the number of toes, from five per foot, to three, to eventually only one toe per foot.