Distance between Niamey, Niger and Kościan, Poland
4486 km = 2788 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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Niamey, Niger
Country: NigerNiamey’s coordinates: 13°30′49″ N, 2°06′35″ E
Population: 774,235
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Kościan, Poland
Country: PolandKościan’s coordinates: 52°05′17″ N, 16°38′55″ E
Population: 24,096
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