That will greatly depend on the size of the stadium.
every field is off the same size, you might be asking about the stadium size.
it depends how big the stadium is
I think its a size 5
A Size 3 football is on the smaller side. This is the size of a standard football for team handball.
A college size football is about the same as highschool size football Pro is a size up from college
Football has a stadium which can fit 9 football pitches 9 full size
The dimensions of a standard football pitch in kilometres are 0.105 x 0.068km.
106 x 68 m