Distance between Ottawa, Canada and Tacoma, Washington, USA
3545 km = 2203 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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Tacoma, USA
Country: USAState: Washington
Tacoma’s coordinates: 47°15′10″ N, 122°26′39″ W
Population: 198,397
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Wikipedia article: Tacoma
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