Distance between Ottawa, Canada and Tangshan, China
10469 km = 6505 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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Ottawa, Canada
Country: CanadaOttawa’s coordinates: 45°24′40″ N, 75°41′53″ W
Population: 812,129
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Wikipedia article: Ottawa
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Tangshan, China
Country: ChinaTangshan’s coordinates: 39°37′59″ N, 118°10′59″ E
Population: 3,372,102
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Wikipedia article: Tangshan
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