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The Baltic Sea is about 1, 600 km ( 1, 000 mi ) long, an average of 193 km ( 120 mi ) wide, and an average of 55 m ( 180 ft, 30 fathoms ) deep.
The maximum depth is 459 m ( 1506 ft ) which is on the Swedish side of the center.
The surface area is about 377, 000 km² ( 145, 522 sq mi ) and the volume is about 20, 000 km³ ( 5040 cubic miles ).
The periphery amounts to about 8, 000 km ( 5, 000 mi ) of coastline.

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