Distance between Sendai, Japan and Portland, Texas, USA
10505 km = 6528 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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Sendai, Japan
Country: JapanSendai’s coordinates: 38°16′00″ N, 140°52′00″ E
Population: 1,063,103
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Wikipedia article: Sendai
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Portland, USA
Country: USAState: Texas
Portland’s coordinates: 27°52′38″ N, 97°19′25″ W
Population: 15,099
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Wikipedia article: Portland
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