A field goal (FG) is a means of scoring in gridiron football. To score a field goal, the team in possession of the ball must place kick, or drop kick, the ball through the goal, i.e., between the uprights and over the crossbar. American football requires that a field goal must only come during a play from scrimmage, while Canadian football retains open field kicks and thus field goals may be scored at any time from anywhere on the field and by any player. The vast majority of field goals, in both codes, are place kicked. Drop kicked field goals were common in the early days of gridiron football but are almost never done in modern times. In most leagues, a successful field goal awards three points (a notable exception is in six-man football where, due to the difficulty of making a successful field goal because of the small number of players available to stop the opposing team from attempting a block, a field goal is worth four points).
A field goal may also be scored through a fair catch kick, but this is extremely rare. Since a field goal is worth only three points, as opposed to a touchdown, which is worth six points, it is usually only attempted in specific situations (see Strategy).
The goal structure consists of a horizontal crossbar suspended 10 feet (3.0 m) above the ground, with two vertical goalposts 18 feet 6 inches (5.64 m) apart extending vertically from each end of the crossbar. In American football, the goals are centered on each end line; in Canadian football, they are centered on each goal line.