Baltic Sea is an arm of the Atlantic Ocean, enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain.
Baltic Sea Region
Map of the Baltic Sea region
Location Northern Europe, Central Europe and Eastern Europe Coordinates 58°N 20°E (slightly east of the north tip of Gotland Island) Type Sea Primary inflows Daugava, Kemijoki, Neman (Nemunas), Neva, Oder, Vistula, Lule, Narva, Torne Primary outflows The Danish Straits Catchment area 1,641,650 km 2 (633,840 sq mi) Basin countries Coastal: Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden Non-coastal: Belarus, Czech Republic, Norway, Slovakia, Ukraine  Max. length 1,601 km (995 mi) Max. width 193 km (120 mi) Surface area 377,000 km 2 (146,000 sq mi) Average depth 55 m (180 ft) Max. depth 459 m (1,506 ft) Water volume 21,700 km 3 (1.76 ×10 10 acre⋅ft) Residence time 25 years Shore length 1 8,000 km (5,000 mi) Islands Abruka, Aegna, Archipelago Sea Islands ( Åland), Bornholm, Dänholm, Ertholmene, Falster, Fårö, Fehmarn, Gotland, Hailuoto, Hiddensee, Hiiumaa, Holmöarna, Kassari, Kesselaid, Kihnu, Kimitoön, Kõinastu, Kotlin, Laajasalo, Lauttasaari, Lidingö, Ljusterö, Lolland, Manilaid, Mohni, Møn, Muhu, Poel, Prangli, Osmussaar, Öland, Replot, Ruhnu, Rügen, Saaremaa, Stora Karlsö, Suomenlinna, Suur-Pakri and Väike-Pakri, Ummanz, Usedom/Uznam, Väddö, Värmdö, Vilsandi, Vormsi, Wolin Settlements Copenhagen, Gdańsk, Gdynia, Haapsalu, Helsinki, Jūrmala, Kaliningrad, Kiel, Klaipėda, Kuressaare, Kärdla, Lübeck, Luleå, Mariehamn, Oulu, Paldiski, Pärnu, Riga, Rostock, Saint Petersburg, Liepāja, Stockholm, Tallinn, Turku, Ventspils References  1 Shore length is not a well-defined measure.
The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude. A
marginal sea of the Atlantic, with limited water exchange between the two water bodies, the Baltic Sea drains through the Danish Straits into the Kattegat by way of the Øresund, Great Belt and Little Belt. It includes the Gulf of Bothnia, the Bay of Bothnia, the Gulf of Finland, the Gulf of Riga and the Bay of Gdańsk.
Baltic Proper is bordered on its northern edge, at latitude 60°N, by Åland and the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, on its eastern edge by the Gulf of Riga, and in the west by the Swedish part of the southern Scandinavian Peninsula.
The Baltic Sea is connected by
artificial waterways to the White Sea via the White Sea–Baltic Canal and to the German Bight of the North Sea via the Kiel Canal.