72 inches is about the same as 6 feet. The Centers for Disease Control and Prevention say that the average height of a man in the United States is 69.3 inches. On average, a woman in the United States is 63.8 inches tall.
There are 12 inches in one foot. In the United States, a person who is 72 inches tall is above average height. The average Dutch person is the tallest in the world. The United States has the fewest people of all the countries in the industrialised world. Most countries use the metric system to measure things, not the Imperial system.