| Rank | Country | Elevation extremes |
251 | Botswana | lowest point: junction of the Limpopo and Shashe Rivers 513 m highest point: Tsodilo Hills 1,489 m |
58 | Bouvet Island | lowest point: South Atlantic Ocean 0 m highest point: Olav Peak 935 m |
59 | Brazil | lowest point: Atlantic Ocean 0 m highest point: Pico da Neblina 2,994 m |
60 | British Indian Ocean Territory | lowest point: Indian Ocean 0 m highest point: unnamed location on Diego Garcia 15 m |
61 | British Virgin Islands | lowest point: Caribbean Sea 0 m highest point: Mount Sage 521 m |
62 | Brunei | lowest point: South China Sea 0 m highest point: Bukit Pagon 1,850 m |
63 | Bulgaria | lowest point: Black Sea 0 m highest point: Musala 2,925 m |
242 | Burkina Faso | lowest point: Mouhoun (Black Volta) River 200 m highest point: Tena Kourou 749 m |
64 | Burma | lowest point: Andaman Sea 0 m highest point: Hkakabo Razi 5,881 m |
254 | Burundi | lowest point: Lake Tanganyika 772 m highest point: Heha 2,670 m |
65 | Cambodia | lowest point: Gulf of Thailand 0 m highest point: Phnum Aoral 1,810 m |
66 | Cameroon | lowest point: Atlantic Ocean 0 m highest point: Fako 4,095 m (on Mt. Cameroon) |
67 | Canada | lowest point: Atlantic Ocean 0 m highest point: Mount Logan 5,959 m |
68 | Cape Verde | lowest point: Atlantic Ocean 0 m highest point: Mt. Fogo 2,829 m (a volcano on Fogo Island) |
69 | Cayman Islands | lowest point: Caribbean Sea 0 m highest point: The Bluff on Cayman Brac 43 m |
248 | Central African Republic | lowest point: Oubangui River 335 m highest point: Mont Ngaoui 1,420 m |
239 | Chad | lowest point: Djourab 160 m highest point: Emi Koussi 3,415 m |