Distance between San Juan, Puerto Rico and Boulogne-sur-Mer, France
6877 km = 4273 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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San Juan, Puerto Rico
Country: Puerto RicoSan Juan’s coordinates: 18°27′58″ N, 66°06′20″ W
Population: 418,140
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Wikipedia article: San Juan
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Boulogne-sur-Mer, France
Country: FranceBoulogne-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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