Distance between Niamey, Niger and Houston, Texas, USA
9979 km = 6201 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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Wikipedia article: Niamey
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Houston, USA
Country: USAState: Texas
Houston’s coordinates: 29°45′47″ N, 95°21′47″ W
Population: 2,099,451
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Wikipedia article: Houston
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