(I'll use "soccer" for "Association football" below to avoid confusion. I'll use "field" rather than "pitch" because the FIFA "Laws of the Game" use "field" except in 3 places [1]).
The rest of the world uses a different size soccer field than the rest of the world. Not only do soccer field sizes vary country to country, they can vary from league to league within a country.
In American football the size is standardized, except for children's leagues. High school, college, and professional leagues all use 100 yards x 160 feet (91.44 x 53.3 meters).
Heck, soccer fields can even vary within a single league. Take the UK Premier League for example. A few years ago their fields ranged from Fullham's 100 x 65 meters to Manchester City's 107 x 73 meters. They have since tried to standardize on 105 x 68 meters but aren't there yet.
Premier league clubs not yet using 105 x 68 are Brentford (105 x 65), Chelsea (103 x 67), Crystal Palace (100 x 67), Everton (103 x 70), Fullham (100 x 65), Liverpool (101 x 68), Nottingham Forest (105 x 70).
For international play, the requirements are 100-110 meters for the long dimension and 64-70 meters for the short dimension.
There are some things that are standardized on a soccer field and so could be used as length references. The funny thing is that those things are all round numbers when expressed in feet or yards.
E.g., the radius of the circle around the center mark is 10 yds. The penalty area is 44 x 18 yds. The penalty mark is 12 yds from the from the goal. The goal area is 20 x 6 yds. The goal posts are 8 yds apart and the crossbar is 8 ft off the ground.
That's because these things were standardized before the UK switched to metric. I guess they didn't want to change the sizes just to keep the numbers round.
[1] there are two places where they say that the assistant referee should "face the pitch", and one place where they say the assistant referee should use his flag to indicate on what area of the pitch offside occurred.
The rest of the world uses a different size soccer field than the rest of the world. Not only do soccer field sizes vary country to country, they can vary from league to league within a country.
In American football the size is standardized, except for children's leagues. High school, college, and professional leagues all use 100 yards x 160 feet (91.44 x 53.3 meters).
Heck, soccer fields can even vary within a single league. Take the UK Premier League for example. A few years ago their fields ranged from Fullham's 100 x 65 meters to Manchester City's 107 x 73 meters. They have since tried to standardize on 105 x 68 meters but aren't there yet.
Premier league clubs not yet using 105 x 68 are Brentford (105 x 65), Chelsea (103 x 67), Crystal Palace (100 x 67), Everton (103 x 70), Fullham (100 x 65), Liverpool (101 x 68), Nottingham Forest (105 x 70).
For international play, the requirements are 100-110 meters for the long dimension and 64-70 meters for the short dimension.
There are some things that are standardized on a soccer field and so could be used as length references. The funny thing is that those things are all round numbers when expressed in feet or yards.
E.g., the radius of the circle around the center mark is 10 yds. The penalty area is 44 x 18 yds. The penalty mark is 12 yds from the from the goal. The goal area is 20 x 6 yds. The goal posts are 8 yds apart and the crossbar is 8 ft off the ground.
That's because these things were standardized before the UK switched to metric. I guess they didn't want to change the sizes just to keep the numbers round.
[1] there are two places where they say that the assistant referee should "face the pitch", and one place where they say the assistant referee should use his flag to indicate on what area of the pitch offside occurred.