Okinawa Island (沖縄本島, Okinawa-hontō^?, alternatively 沖縄島 Okinawa-jima; Okinawan: ウチナー Uchinaa; Nakijin: フチナー Fuchinaa) is the largest of the Okinawa Islands and the Ryukyu (Nansei) Islands of Japan, and is home to Naha, the capital of Okinawa Prefecture. The island has an area of 1,201.03 square kilometers (463.72 sq mi). It is roughly 640 kilometres (400 mi) south of the rest of Japan.