Distance between Tainan City, Taiwan and Tehran, Iran
6691 km = 4158 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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Tainan City, Taiwan
Country: TaiwanTainan City’s coordinates: 22°59′26″ N, 120°12′47″ E
Population: 771,235
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Wikipedia article: Tainan City
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Tehran, Iran
Country: IranTehran’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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