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The square kilometre ( square kilometer in American spelling; symbol: km2) is a multiple of the square metre, the SI unit of area or surface area . 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] Conversely: 1 m 2 = 0.000001 (10 −6) km 2.
A square kilometer ( British English spelling square kilometre, in short km²) is a unit of measurement of area . It is based on the SI unit meter . Equal areas. A square that has a side length of 1 kilometer (1000 meters) has an area of one square kilometer. 1,000 m × 1,000 m = 1 km × 1 km = 1,000,000 m² = 1 km² [1]
This is a list of the world's countries and their dependencies by land, water, and total area, ranked by total area. Entries in this list include, but are not limited to, those in the ISO 3166-1 standard, which includes sovereign states and dependent territories. All 193 member states of the United Nations plus the two observer states are given ...
Countries by area. This is a list of countries by total area. The total area is the sum of all land and Inland water bodies (lakes, reservoirs, rivers). Data is taken from the United Nations Statistics Division. [1] Sovereign states and dependent territories by area. References.
PosCountryTotal In Km 2 (mi 2 )117,098,246 (6,601,670)–14,200,000 (5,500,000)29,984,670 (3,855,100)39,596,961 (3,705,407)View history. Tools. From Simple English Wikipedia, the free encyclopedia. The kilometre is a common unit used for longer distances on Earth. The international unit for measuring distances is the metre and a kilometre is 1000 metres. It is used in most countries for measuring road and sea distances.
The world's population is around 8,000,000,000 [3] and the Earth 's total area (including land and water) is 510,000,000 km 2 (200,000,000 sq mi). [4] . Therefore, the worldwide human population density is approximately 8,000,000,000 ÷ 510,000,000 = 16/km 2 (41/sq mi).
For example, 1 kilometre is 10 3 (one thousand) times the length of 1 metre, but 1 square kilometre is (10 3) 2 (10 6, one million) times the area of 1 square metre, and 1 cubic kilometre is (10 3) 3 (10 9, one billion) cubic metres.