Australia, island continent located between the Indian and South Pacific oceans south-east of Asia and forming, with the nearby island of Tasmania, the Commonwealth of Australia, a self-governing member of the Commonwealth of Nations. The continent is bounded on the north by the Timor Sea, the Arafura Sea, and the Torres Strait; on the east by the Coral Sea and the Tasman Sea; on the south by the Bass Strait and the Indian Ocean; and on the west by the Indian Ocean. The Commonwealth of Australia extends about 4,000 km (2,485 mi) from Cape Byron in the east to Western Australia, and about 3,700 km (2,300 mi) from Cape York in the north to Tasmania in the south. Its coastline measures some 36,735 km (22,826 mi). The area of Australia, including Tasmania, is 7,682,300 sq km (2,966,200 sq mi). The area of the continent alone is 7,614,500 sq km (2,939,974 sq mi), making Australia the smallest continent and one of the largest countries in the world.