Distance between Macao, Macau and Kotlas, Arkhangelsk Oblast, Russia
6635 km = 4123 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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Macao, Macau
Country: MacauMacao’s coordinates: 22°12′02″ N, 113°32′45″ E
Population: 520,400
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Kotlas, Russia
Country: RussiaKotlas’ coordinates: 61°15′26″ N, 46°38′58″ E
Population: 59,180
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Wikipedia article: Kotlas
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