Seven feet is equivalent to 84 inches. There are 12 inches in one foot according to the English system of measurement. There are three feet in a yard. Eighty-four inches can also be stated as two yards and one foot.
In the United States, the foot is used as the primary unit of measure. Canada accepts measurement in feet as an alternative to the metric system. The foot is still used regularly in the United Kingdom.
The majority of the world relies on the metric system as a measurement of length. One foot is equivalent to 0.3048 meters. A length of 84 inches is therefore equivalent to 2.1336 meters.