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  2. List of United States cities by area - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    San Francisco is an extreme example: water makes up nearly 80% of its total area of 232 square miles (601 km 2). In many cases an incorporated place is geographically large because its municipal government has merged with the government of the surrounding county.

  3. Square kilometre - Wikipedia

    en.wikipedia.org/wiki/Square_kilometre

    The square kilometre (square kilometer in American spelling; symbol: km 2) is a multiple of the square metre, the SI unit of area or surface area. In the SI unit of area (m 2), 1 km 2 is equal to 1M(m 2). 1 km 2 is equal to: 1,000,000 square metres (m 2) 100 hectares (ha) It is also approximately equal to: 0.3861 square miles [2] 247.1 acres [3 ...

  4. List of countries and dependencies by area - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_and...

    Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water.

  5. List of largest empires - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_empires

    The home and colonial areas of the world's empires in 1908, as given by The Harmsworth Atlas and Gazetteer. Empire size in this list is defined as the dry land area it controlled at the time, which may differ considerably from the area it claimed.

  6. List of countries and dependencies by population density

    en.wikipedia.org/wiki/List_of_countries_and...

    Population density (people per km 2) by country. This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1.

  7. List of U.S. states and territories by area - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._states_and...

    This is a complete list of all 50 U.S. states, its federal district (Washington, D.C.) and its major territories ordered by total area, land area and water area. [1] The water area includes inland waters, coastal waters, the Great Lakes and territorial waters.

  8. Units of measurement in transportation - Wikipedia

    en.wikipedia.org/wiki/Units_of_measurement_in...

    For instance, it appears to compare different kind of roads in some publications as it had been computed on a five-year period between 1995 and 2000. [8] In the United States, it is computed per 100 million miles traveled, while internationally it is computed in 100 million or 1 billion kilometers traveled.

  9. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    A length of 100 kilometers (about 62 miles), ... side of a square of area 100,000,000 square kilometers ... (10 12 m). To help compare different distances, ...