Distance between Tehran, Iran and Vientiane, Laos

5385 km = 3346 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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Vientiane, Laos

Country: Laos
Vientiane’s coordinates: 17°58′00″ N, 102°35′59″ E
Population: 196,731
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Wikipedia article: Vientiane

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