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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 ...
Land, water and total area by U.S. state, district or territory, sortable State / territory Total area Land area Water area sq mi km 2 sq mi km 2 sq mi km 2 Alaska 665,384
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.
For context, the land area of the Earth, excluding the continent of Antarctica, is 134,740,000 km 2 (52,023,000 sq mi). [7] Empires at their greatest extent.
Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 miles × 20 miles) has an area of 400 sq mi; a rectangle of measuring 10 miles × 40 miles also has an area of 400 sq mi, but is not 20 miles square.
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.
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.
The contiguous United States occupies an area of 3,119,884.69 square miles (8,080,464.3 km 2). Of this area, 2,959,064.44 square miles (7,663,941.7 km 2) is actual land, composing 83.65 percent of the country's total land area, and is comparable in size to the area of Australia. [9] Officially, 160,820.25 square miles (416,522.5 km 2) of the ...