Distance between Riga, Latvia and Ottawa, Canada
6443 km = 4004 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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Riga, Latvia
Country: LatviaRiga’s coordinates: 56°56′45″ N, 24°06′21″ E
Population: 742,572
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Wikipedia article: Riga
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Ottawa, Canada
Country: CanadaOttawa’s coordinates: 45°24′40″ N, 75°41′53″ W
Population: 812,129
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Wikipedia article: Ottawa
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