big
None. The largest is Alaska with 656,425 square miles.
3,056.95 sq feet.
161.25 sq ft
It is 566.5 sq metres.
1,284,000 sq km.
500 sq meters = 5,381.96 sq feet (rounded)
836,000 sq miles
really big
1 sq yard = 0.8361 sq metres.
It is 144 (12*12) sq inches.
City Sofia is 519 sq miels.
The answer will depend on how big the squares are.