Yemen is 203,849 sq miles, (527,968 km2) in area.
The USA is over 18 times the size of Yemen.
203,850 square miles
91,136 Square miles.
It is 35,385 square miles.
356,667 square miles.
246,201 square miles
Japan - 145,882.85 square miles.
Netherlands - 16,033 square miles.
Syria's area is 71,498 square miles.
5860 square km = 2262.55 square miles
43.5 square kilometers are 16.795444 square miles.
1,730,648 square kilometers = 668,206.928 square miles
137,732 square km or 53,179 square miles.