Distance between Niamey, Niger and Boulogne-sur-Mer, France

4142 km = 2574 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: Niger
Niamey’s coordinates: 13°30′49″ N, 2°06′35″ E
Population: 774,235
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Wikipedia article: Niamey

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Boulogne-sur-Mer, France

Country: France
Boulogne-sur-Mer’s coordinates: 50°43′00″ N, 1°37′00″ E
Population: 47,013
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Wikipedia article: Boulogne-sur-Mer

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