Five acres is equivalent to 24,200 square yards, or 0.7 percent of a square mile. Since an acre is equivalent to about 75 percent of the area of a football field, 5 acres is equivalent to almost four football fields.
A single acre superimposed over a football field would cover everything from one end zone to the opposite side's 10 yard line. Five acres is also equivalent to about two city blocks, although there is no precise standard. An acre is defined in modern times as 1/640 of a square mile. In the Middle Ages, however, an acre was defined as the amount of land that could be ploughed in one day using a yoke of oxen.