Distance between Tehran, Iran and Allentown, Pennsylvania, USA

9958 km = 6188 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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Tehran, Iran

Country: Iran
Tehran’s coordinates: 35°41′39″ N, 51°25′17″ E
Population: 7,153,309
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Wikipedia article: Tehran

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Allentown, USA

Country: USA
State: 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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Find out the distance between Allentown and the North Pole, the South Pole, the Equator, the Tropic of Cancer, the Tropic of Capricorn, the Arctic Circle, the Antarctic Circle