What is a hectare?

It is the metric unit of land measurement for which most of the world calculates the amount of vineyard area. We in the United States speak more in terms of acres. There are approximately 2.47 acres to one hectare. If only winemakers would eliminate the standard 750ml bottle and make each and every bottle 1 liter (1000ml or 25% more), wine lovers just might further embrace the metric system.