Distance between Colombo, Sri Lanka and Vientiane, Laos

2757 km = 1713 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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Colombo, Sri Lanka

Country: Sri Lanka
Colombo’s coordinates: 6°55′54″ N, 79°50′52″ E
Population: 648,034
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Wikipedia article: Colombo

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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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