Distance between Douala, Cameroon and Boulder, Colorado, USA
11810 km = 7338 miles
We assume a spherical Earth as a close approximation of the true shape of the Earth (an oblate spheroid). The distance is calculated as great-circle or orthodromic distance between city centres on the surface of a sphere.
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Douala, Cameroon
Country: CameroonDouala’s coordinates: 4°02′53″ N, 9°42′15″ E
Population: 1,338,082
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Boulder, USA
Country: USAState: Colorado
Boulder’s coordinates: 40°00′53″ N, 105°16′13″ W
Population: 97,385
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