Association football fields actually have some flexibility in dimensions (less so for international play), so the 110x50 meter dimension of an NFL field would actually work for soccer
Another fun fact: the rules allow the goal lines to be a maximum of 90m, and the touch lines to be a minimum of 90m, so theoretically a square field could be legal
If American, use sports related analogies. About 2/3 of a football field.
Actually it’s pretty much exactly the main play area of a football field, minus 5 yards on either side, or 10 yards on one side(acre in red, association football field in blue): https://en.wikipedia.org/wiki/File%3AAcre_superimposed_over_football_fields.svg
The unit apparently represents the approximate area of land that one person with a team of oxen could plow in a single day.
Funny enough “about 2/3 the size of a football field” works about as well for places that use that word for soccer too
A FIFA standard field is 1.764 acres (off by 17.6%) and an NFL standard field is 1.322 (off by 11.9%)
Wait, you’re telling me a football field is approximately one football field in size?
Association football fields actually have some flexibility in dimensions (less so for international play), so the 110x50 meter dimension of an NFL field would actually work for soccer
Another fun fact: the rules allow the goal lines to be a maximum of 90m, and the touch lines to be a minimum of 90m, so theoretically a square field could be legal
Edit: source https://en.wikipedia.org/wiki/Football_pitch