Distance between Colombo, Sri Lanka and Jiayuguan City, China
4097 km = 2546 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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Colombo, Sri Lanka
Country: Sri LankaColombo’s coordinates: 6°55′54″ N, 79°50′52″ E
Population: 648,034
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Wikipedia article: Colombo
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Jiayuguan City, China
Country: ChinaJiayuguan City’s coordinates: 39°48′40″ N, 98°17′10″ E
Population: 122,396
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Wikipedia article: Jiayuguan City
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