which is also not normalized. A referee once told me that - in theory - football fields can be square. I think it was 80m x 80m since 80m is the minimum length and the maximum width. Correct me if I am wrong.
Field size for American football is definitely standardized: 100 yards between goal lines and 160 feet wide. Lots of Americans will have an intuitive sense for how long something like "three football fields" is.
But that intuitive size would in fact be wrong. The size we associate with an American football field is more commonly going to be the distance including the end zones.
