Distance between Kazan’, Republic of Tatarstan, Russia and Umuahia, Nigeria
6694 km = 4160 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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Kazan’, Russia
Country: RussiaKazan’’s coordinates: 55°47′19″ N, 49°07′19″ E
Population: 1,104,738
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Umuahia, Nigeria
Country: NigeriaUmuahia’s coordinates: 5°31′29″ N, 7°29′40″ E
Population: 264,662
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