The United States is the fourth largest country in the world in land area, with 3,678,900 square miles (9,565,140 sq km).
The largest country in the world, with 6,592,812 square miles (17,141,311 sq km), is Russia; it is almost twice as big as the United States.
Canada ranks number two in size (3,831,000 sq mi/9,960,600 sq km), and China is number three (3,691,500 sq mi/9,597,900 sq km).
China and the United States are very similar in size.
