40th meridian west

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The meridian 40° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.

The 40th meridian west forms a great circle with the 140th meridian east.

Starting at the North Pole and heading south to the South Pole, the 40th meridian west passes through:

Co-ordinates	Country, territory or sea	Notes
90°0′N 40°0′W / 90.000°N 40.000°W / 90.000; -40.000 (Arctic Ocean)	Arctic Ocean
83°39′N 40°0′W / 83.650°N 40.000°W / 83.650; -40.000 (Lincoln Sea)	Lincoln Sea
83°18′N 40°0′W / 83.300°N 40.000°W / 83.300; -40.000 (Greenland)	Greenland
65°1′N 40°0′W / 65.017°N 40.000°W / 65.017; -40.000 (Atlantic Ocean)	Atlantic Ocean
2°50′S 40°0′W / 2.833°S 40.000°W / -2.833; -40.000 (Brazil)	Brazil	Ceará Pernambuco — from 7°22′S 40°0′W / 7.367°S 40.000°W / -7.367; -40.000 (Pernambuco) Bahia — from 9°3′S 40°0′W / 9.050°S 40.000°W / -9.050; -40.000 (Bahia) Minas Gerais — from 15°59′S 40°0′W / 15.983°S 40.000°W / -15.983; -40.000 (Minas Gerais) Bahia — from 16°21′S 40°0′W / 16.350°S 40.000°W / -16.350; -40.000 (Bahia) Espírito Santo — from 18°7′S 40°0′W / 18.117°S 40.000°W / -18.117; -40.000 (Espírito Santo)
19°46′S 40°0′W / 19.767°S 40.000°W / -19.767; -40.000 (Atlantic Ocean)	Atlantic Ocean
60°0′S 40°0′W / 60.000°S 40.000°W / -60.000; -40.000 (Southern Ocean)	Southern Ocean
77°35′S 40°0′W / 77.583°S 40.000°W / -77.583; -40.000 (Antarctica)	Antarctica	Claimed by both  Argentina (Argentine Antarctica) and  United Kingdom (British Antarctic Territory)

• 39th meridian west
• 41st meridian west