What is the difference between CFL and NFL?

Answer 1

NFL field=120 yards (100 yard playing field, 2 endzones 10 yrds each)

CFL Field=150 yards (110 yard playing field, 2 endzones 20 yrds each)

NFL plays with four downs

CFL plays with three downs

The CFL rewards 1 point for a touchback, the NFL does not.

In the NFL, the uprights are at the back of the endzone, in the CFL, they are at the front

No fair catch in the CFL

A CFL ball is bigger

Answer 2

NFL: There are 4 downs. There are 11 men per team on the field at one time. The field is 100 yards long and 53 1/3 yards wide. The endzones are 10 yards long. The goalposts are at the back of the endzone, so there is no point if you miss a field goal, and there is no return unless the field goal is short. Defensive players can line up right to the line of scrimmage. A team can scrimmage from within the one-yard line. There is a fair catch rule; the punt receiver may elect not to try to return the ball. The intentional grounding penalty only applies if the quarterback is within the tackle zone (in between his two offensive tackles) The offensive unit has 40 seconds to put the ball into play from the signal of the referee.

CFL: There are 3 downs. There are 12 men per team on the field at one time. The field is 110 yards long and 65 yards wide. The end zones are 25 yards long. The goalposts are at the front of the end zone, and if the ball goes into the end zone at any point in the game and is not returned, the opposing team gets a point. However a player can return the ball out of the endzone if he chooses to. Defensive players may not go closer to the line of scrimmage than one yard. As a result, teams may not scrimmage from within their opponents' one-yard line. There is no fair catch rule; the team receiving the punt must field the kick and try to run it back (or kick it back). However, every member of the kicking team except the kicker and anyone onside of him may not go closer to the punt receiver than five yards. The intentional grounding penalty applies if the quarterback throws the ball and there is no receiver around and it does not pass the line of scrimmage. The offensive unit has only 20 seconds to put the ball into play after the signal from the referee.