size of the world in Hectare or square kilometer?
338705
The total surface are of the Earth is 510,065,284.702 km² or 51,006,528,500 hectares.  The land surface area is 148,939,063.133 km² or 14,893,906,300 hectares
351757
An acre is roughly half the size of a football pitch. A hectare is equal to 10,000 square metres and is  2,471 acres.
880015
Well Britain is 80,800 square miles and USA is  3,618,770 square miles, so that would make it nearly 45 times the size!
901347
You could use the formula for surface area of a sphere to solve this.\n\nUsing google, I found the diameter of the earth is 12756.3 km, which is equal to 41,851,378 ft.  So the radius is 20,925,689 ft.\n\nThe formula for surface area of a sphere is 4pi r².\n\nSo the square feet covering the earth is 4pi(20,925,689)² square feet.  \n\nThis is approx. equal to 5.5026 * 10^15 square feet.\n\n~ ♥ ~
770883
Here's a listing of the ten largest countries in the world by area, in both square kilometers and square miles.\n\n1. Russia: 17,075,200 km2 (6,591,027 mi2), moscow\n\n2. Canada: 9,984,670 km2 (3,854,082 mi2), ottawa\n\n3. United States: 9,631,418 km2 (3,717,727 mi2), washington dc\n\n4. China: 9,596,960 km2 (3,704,426 mi2), beijing\n\n5. Brazil: 8,511,965 km2 (3,285,618 mi2), brasilia\n\n6. Australia: 7,686,850 km2 (2,967,124 mi2), canberra\n\n7. India: 3,287,590 km2 (1,269,009 mi2), delhi (tats where i am)\n\n8. Argentina: 2,766,890 km2 (1,068,019 mi2), buenos aires\n\n9. Kazakhstan: 2,717,300 km2 (1,048,877 mi2), astana\n\n10. Sudan: 2,505,810 km2 (967,243 mi2), khartoum
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The Ten Biggest Islands on Earth \nIslands, Ten Largest \n Area in Square Miles Area in Square Kilometers \n1 \n Greenland \n 823,000 2,131,000 \n2 \n New Guinea \n 309,000 800,000 \n3 \n Borneo, Indonesia \n 280,000 726,000 \n4 \n Madagascar, Africa \n 227.000 578,000 \n5 \n Baffin Island, Canada \n 196,000 507,000 \n6 \n Sumatra, Indonesia \n 164,000 425,000 \n7 \n Honshu, Japan \n   88,000 227,000 \n9 \n Victoria Island, Canada \n   83,896 217,291 \n8 \n Great Britain \n   83,698 216,777 \n10 \n Ellesmere, Canada \n   76,000 196,000 \n11 \n Celebes, Indonesia \n 67,000 175,000 \n12 \n South Island, New Zealand \n 58,000 151,000 \n13 \n Java, Indonesia \n 49,000 127,000 \n14 \n North Island, New Zealand \n 44,000 114,000 \n15 \n Newfoundland, Canada \n 42,000 109,000 \n16 \n Cuba \n 41,000 105,000 \n17 \n Luzon, Phillipines \n 40,000 104,700 \n18 \n Iceland \n 39,700 103,000 \n19 \n Mindanao, Phillipines \n 37,000 95,000 \n20 \n Ireland \n 33,000 84,000
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Russia-17,075,200 sq.km\nUSA------9,826,675 sq.km\nChina----9,596,960 sq.km.
69500
The circumference of the earth at the equator is 24,902 mi / 40,076 km.
1133670
An acre is a measure of area, not distance, so it would be square miles.\n\nThere are 0.156 square miles in 100 acres.
472977
1 kilometer = 100 000 centimeters\n\nso we have\n\n200: 100000\nor\n1:500
723940
From square metres to acres  (divide by 4047)\nsquare metres to hectares (divide by10 000)
485829
ok, so 1 hectare = 2.47105381 acres\nand 1 Acre = 4047 square meters\nYou better check out this link it's useful and helpful http://www.towersurveys.co.uk/Amendments140304/Convertme.htm
119186
(A) total square kilometers = 500,000\n(B) square meters/square kilometer = 1,000,000\n(C) total square meters (A*B) = 500,000,000,000\n(D) 2% Reduction in Land (.02*C) = 10,000,000,000\n(E) Liters of water per square meter = 20\n(F) liters of water per day in lost land (D*E) = 200,000,000,000\n(G) Days per year = 365\n(H) liters of water per year lost (F*G) = 73,000,000,000,000
478701
Equatorial diameter 6,804.9 km (4228.4 Miles)\n(0.533 Earths)\nPolar diameter 6,754.8 km (4197.2 Miles)\n(0.531 Earths)\nOblateness 0.007 36\nSurface area 1.448×108 km2 (55.907 Million Square Miles)\n(0.284 Earths)\n\n\n"Mars-5-inch-thing" Sure... but in which category of questions are we?
898224
1 (square kilometer) = 0.386102159 square miles\n114 people / 2.6 sq. mi.\n43.8 people / sq. mi\nCairo - Density 35,420/km² \nPortugal is the 87th most densly populated country with 114 people / km^3\nhttp://en.wikipedia.org/wiki/List_of_countries_by_population_density\n\nThe world population is 6.5 billion humans, and Earth's area is 510 million square kilometers (200 million square miles). Therefore the world-wide human population density is 6.5 billion / 510 million = 13 per km² (33 per sq mi), or 43 per km² (112 per sq mi) considering that humans live on land, which forms 150 million km² (58 million sq mi) of the earth. This density rises with the population growth, and some people think there is a limit of what the Earth can support.\n\nSeveral of the highest-density territories in the world are very small city-states, micronations or dependencies. These territories share a relatively small area and an exceptionally high urbanization level, with an economically specialized city population drawing also on rural resources outside the area, illustrating the difference between high population density and overpopulation.\n\nCities with exceptionally high population densities are often considered to be overpopulated, though the extent to which this is the case depends on factors like quality of housing and infrastructure or access to resources. Most of the largest densely-populated cities are in southern and eastern Asia, though Cairo and Lagos in Africa also fall into the category. City population is however, heavily dependent on the definition used for the urban area: densities will be far higher for the central municipality than when more recently-developed and as yet administratively unincorporated suburbs are included, as in the concepts of agglomeration or metropolitan area, the latter including sometimes neighbouring cities.
978267
United States: 9,161,923 sq km\nUnited Kingdom: 241,590 sq km \n\nThat's almost 38 times as big...
838437
just divide any calculations made in \nsquare metres by 10,000 and you have\nyour area in hectares\n\ni hope that this helps