Distance between Perth, Australia and Portsmouth, New Hampshire, USA

18670 km = 11601 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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Perth, Australia

Country: Australia
Perth’s coordinates: 31°57′08″ S, 115°51′41″ E
Population: 1,896,548
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Wikipedia article: Perth

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Portsmouth, USA

Country: USA
State: New Hampshire
Portsmouth’s coordinates: 43°04′18″ N, 70°45′45″ W
Population: 20,779
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Wikipedia article: Portsmouth

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