Distance between Colombo, Sri Lanka and Allentown, Pennsylvania, USA
14174 km = 8807 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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Allentown, USA
Country: USAState: Pennsylvania
Allentown’s coordinates: 40°36′30″ N, 75°29′24″ W
Population: 118,032
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Wikipedia article: Allentown
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