Distance between Washington D.C., Washington, D.C., USA and Tongzhou, China
11155 km = 6932 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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Washington D.C., USA
Country: USAState: Washington, D.C.
Washington D.C.’s coordinates: 38°53′42″ N, 77°02′10″ W
Population: 601,723
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Wikipedia article: Washington D.C.
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Tongzhou, China
Country: ChinaTongzhou’s coordinates: 39°54′14″ N, 116°39′42″ E
Population: 163,326
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