Distance between Ottawa, Canada and Roma, Australia
15589 km = 9687 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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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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Roma, Australia
Country: AustraliaRoma’s coordinates: 26°34′02″ S, 148°47′15″ E
Population: 5,496
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Wikipedia article: Roma
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Find out the distance between Roma and the North Pole, the South Pole, the Equator, the Tropic of Cancer, the Tropic of Capricorn, the Arctic Circle, the Antarctic Circle