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: Canada
Ottawa’s coordinates: 45°24′40″ N, 75°41′53″ W
Population: 812,129
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Wikipedia article: Ottawa

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Find out the distance between Ottawa and the North Pole, the South Pole, the Equator, the Tropic of Cancer, the Tropic of Capricorn, the Arctic Circle, the Antarctic Circle

Roma, Australia

Country: Australia
Roma’s coordinates: 26°34′02″ S, 148°47′15″ E
Population: 5,496
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Wikipedia article: Roma

Find out the distance between Roma and other cities
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