Distance between Reading, Pennsylvania, USA and Ulan Bator, Mongolia

10210 km = 6344 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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Reading, USA

Country: USA
State: Pennsylvania
Reading’s coordinates: 40°20′08″ N, 75°55′36″ W
Population: 88,082
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Wikipedia article: Reading

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Ulan Bator, Mongolia

Country: Mongolia
Ulan Bator’s coordinates: 47°54′27″ N, 106°52′59″ E
Population: 844,818
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Wikipedia article: Ulan Bator

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