After scoring a touchdown, a team can opt to attempt to have its placekicker kick the ball over the crossbar and through the uprights — just like a field goal — to earn one additional point. The ball is snapped from the 15-yardline for the attempt and the kick is equivalent to about a 33-yard field goal.
Worth three points, a team scores a field goal when a placekicker kicks the ball from the field of play over the crossbar and between the uprights.
Worth two points, NFL defenses can score a safety by tackling the offensive player who has the football behind his own goal line or by making him run or fumble the ball out bounds behind his own goal line. It is also a safety if the offense commits a penalty in its own end zone.
The most valuable score in the NFL worth six points. A player scores a touchdown if he carries the ball across the goal line into the other team’s end zone or catches the ball within the opponent’s end zone.
After scoring a touchdown, an offense can opt to run one play from the defense’s two-yard line to try to earn two additional points. The team earns the points if a runner carries the ball across the goal line or catches the ball within the end zone, just like scoring a touchdown.