Situated in eastern Europe, north of the Balkan Peninsula, Romania has a total area of 237,500 sq km (91,699 sq mi). Comparatively, the area occupied by Romania is slightly smaller than the state of Oregon. The dimensions of the country are 789 km (490 mi) E – W and 475 km (295 mi) N – S . It is bounded on the N and NE by Ukraine and Moldova, on the E by the Black Sea, on the S by Bulgaria, on the SW by Serbia and Montenegro, and on the W by Hungary, with a total boundary length of 2,733 km (1,698 mi), of which 225 km (140 mi) is coastline. Romania's capital city, Bucharest, is located in the south central part of the country.