How do I find contract size in MT4?

1. In MetaTrader 4, right-click on Market Watch, choose your asset, and left-click on Specification

2. The information under Contract Size shows you how many contracts, or units, you are trading of the asset when entering 1.00 in the volume field. When you enter a fraction of 1.00, you trade with the respective fractional amount of contracts or units.

Here, for example, you would buy 10 ounces of GOLD when entering 1.00 for the volume.