Distance between San Juan, Puerto Rico and Lanzhou, China
13876 km = 8622 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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Lanzhou, China
Country: ChinaLanzhou’s coordinates: 36°03′25″ N, 103°50′23″ E
Population: 2,628,426
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Wikipedia article: Lanzhou
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