Distance between Dongguan, China and Sơn La, Vietnam
1030 km = 640 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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Dongguan, China
Country: ChinaDongguan’s coordinates: 23°01′04″ N, 113°44′55″ E
Population: 8,000,000
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Wikipedia article: Dongguan
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Sơn La, Vietnam
Country: VietnamSơn La’s coordinates: 21°19′32″ N, 103°55′07″ E
Population: 19,054
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Wikipedia article: Sơn La
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