Distance between Bangkok, Thailand and Lanzhou, China
2505 km = 1557 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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Bangkok, Thailand
Country: ThailandBangkok’s coordinates: 13°45′14″ N, 100°30′05″ E
Population: 5,104,476
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Wikipedia article: Bangkok
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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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