Located at the extreme inner corner of the Gulf of Guinea on the west coast of Africa, Nigeria occupies an area of 923,768 sq. km (356,669 sq mi), extending 1,127 km (700 mi) E–W and 1,046 km (650 mi) N–S. Comparatively, the area occupied by Nigeria is slightly more than twice the size of the state of California. It is bordered by Chad on the NE, by Cameroon on the E , by the Atlantic Ocean (Gulf of Guinea) on the S , by Benin (formerly Dahomey) on the W , and by Niger on the NW and N , with a total boundary length of 4,900 km (3,045 mi), of which 853 km (530 mi) is coastline. The borders between Nigeria and Chad and Nigeria and Cameroon are disputed, and there have been occasional border clashes.
Nigeria's capital city, Abuja, is located in the center of the country.