AreaConversions copy.xlsx
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CCC's Area Conversion Table
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Disclaimer: The data below was compiled over time for informal use.
I am making it public for general use, but please be aware that the information in this table has (most likely) not been fact-checked in any rigorous way.
Please be aware of this before using the data for any specific purpose.
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You can calculate areas directly onto a map with this tool: https://www.daftlogic.com/projects-google-maps-area-calculator-tool.htm
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Color code:BenchmarksPolitical Entity Protected Areas
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Representative areaAcresMiles2HectaresKm2% Earth's total landCitation (in the works...)
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1 acre10.0015630.4050.004046870.00%
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American football field (with end zones)1.320.0020630.5340.005341870.00%https://en.wikipedia.org/wiki/Acre
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Football/soccer field1.760.0027500.7120.007122500.00%https://en.wikipedia.org/wiki/Football_pitch
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1 hectare2.470.00386010.010.00%
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Average block in Manhattan5.570.0087032.2540.022541080.00%https://www.quora.com/What-is-the-size-of-a-New-York-City-block
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1 square kilometer2470.38610010010.00%
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1 square mile6401.002592.590.00%
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Central Park, Manhattan8431.3234130.00%
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Approximate ecosystem site 2,4713.861,000100.00%Bailey 1996
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Boston proper (not greater Boston)30,59247.8012,3801240.00%
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Washington, D.C.39,29661.4015,9031590.00%
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Cape Cod216,960339.0087,8018780.00%
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Approximate landscape mosaic247,105386.10100,0001,0000.00%Bailey 1996
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Organ Pipe National Monument330,689516.70133,8251,3380.00%Felger et al. In press
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Sonoran Desert National Monument496,337775.53200,8602,0090.00%Felger et al. In press
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Rhode Island775,6801,212313,9073,1390.00%Google search
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Big Bend National Park801,1641,252324,2203,2420.00%
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Cabeza Prieta National Wildlife Refuge860,0101,344348,0343,4800.00%http://www.fws.gov/southwest/refuges/arizona/cabeza.html
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Glacier National Park1,013,5721,584410,1784,1020.00%
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Crown of the Continent Ecosystem1,257,2701,964508,8005,0880.00%Flathead Transboundary Network 1999, 4
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Delaware1,594,2402,491645,1676,4520.00%
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Pinacate Biosphere Reserve1,765,9152,759714,6567,1470.00%Felger et al. In press
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Yellowstone National Park2,219,7913,468898,3178,9830.01%
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Alto Golfo Biosphere Reserve2,328,3493,637942,2709,4230.01%Felger et al. In press
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Total U.S. golf courses2,400,0003,750971,2469,7120.01%
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Tohono O'odham Reservation, Arizona2,773,3574,3331,122,33811,2230.01%ADC nd
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Current extent of NA tallgrass praire3,533,6025,5211,430,00014,3000.01%
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Belize5,674,7668,8672,296,50022,9650.02%
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Massachusetts5,914,2119,2412,393,40023,9340.02%
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Gates of the Arctic National Park, Alaska8,400,08713,1253,399,40033,9940.02%
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Greater Yellowstone Ecosystem10,996,17317,1814,450,00044,5000.03%
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Costa Rica12,617,18119,7145,106,00051,0600.03%
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Wrangell-St. Elias NP13,200,00020,6255,341,85053,4190.04%
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Muskwa-Kechika Management Area (2000)15,567,36024,3246,299,89262,9990.04%
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Global forest loss/year18,038,30028,1787,300,00073,0000.05%FAO 2007
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Apprx. rural land developed, '70-9019,000,00029,6887,689,02676,8910.05%Sierra Club
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Muskwa-Kechika ecosystem19,768,00030,8808,000,00080,0000.05%
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Global genetically modified cropland20,000,00031,2508,093,71280,9370.05%
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Approximate "ecoregion"24,710,50038,61010,000,000100,0000.07%Bailey 1996
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Iceland25,452,16039,76910,300,131103,0010.07%
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Amazon deforestation 1966-198325,600,00040,00010,359,960103,6000.07%
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American lawns30,000,00046,87512,140,619121,4060.08%American PIE
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Cleared+fragmented tropical forests/yr33,852,70052,88213,700,000137,0000.09%FAO
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Cleared+fragmented tropical forests/yr37,065,00057,90015,000,000150,0000.10%Laurance et al. 1997
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NWPS-Alaska56,000,00087,50022,662,394226,6250.15%
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Great Lakes surface area60,160,00094,00024,345,906243,4590.16%
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New Zealand74,131,500115,83030,000,000300,0000.20%
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US National Park Service land76,500,000119,53130,958,448309,5860.21%
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US Fish and Wildlife Service land87,400,000136,56335,369,521353,6970.24%
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Kamchatka Peninsula91,428,850140,00037,000,000370,0000.24%
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US Wilderness Preservation System104,000,000162,50042,087,302420,8750.28%
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California104,765,107163,69542,397,000423,9700.28%
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Chihuahuan Desert128,000,000200,00051,799,800517,9980.35%
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Cumltv deforestation 2000/Brzl Amazon145,047,700226,58258,700,000587,0000.39%Kaimowitz nd (Amazon or transborder file)
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Total global area of coral reefs148,263,000231,66060,000,000600,0000.40%
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Texas172,044,632268,81969,624,100696,2410.47%
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US Forest Service land191,500,000299,21977,497,292774,9760.52%
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Total global PAs (1970)247,105,000386,100100,000,0001,000,0000.67%
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Egypt247,456,000386,650100,141,9631,001,4200.67%1988 World Almanac
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US BLM land268,000,000418,750108,455,7411,084,5620.73%
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Yellowstone to Yukon region296,320,000463,000119,916,5371,199,1650.81%
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Original extent of N. American tallgrass praire353,360,150552,123143,000,0001,430,0000.96%
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Alaska424,490,313663,263171,785,4001,717,8541.15%
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Indonesia474,303,963741,097191,944,3001,919,4431.29%
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Mexico483,881,258756,061195,820,1001,958,2011.31%
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US Public lands726,000,0001,134,373293,801,7462,938,0301.97%
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Amazon rainforest988,420,0001,544,400400,000,0004,000,0002.69%http://www.bbc.co.uk/dna/h2g2/A925913
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Amazon basin1,600,000,0002,500,000647,497,5006,474,9754.35%http://www-personal.umich.edu/~mhaack/amazon.html
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Approx. global grain harvest area1,667,958,7502,605,500675,000,0006,750,0004.53%
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Total global tropical moist forests1,853,287,5002,895,750750,000,0007,500,0005.04%
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United States2,322,787,0003,629,340940,000,0009,400,0006.31%
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Canada2,463,787,5843,849,653997,061,0009,970,6106.69%
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World forests, plantation & natural3,454,000,0005,396,8751,397,784,06213,977,8999.38%FAO
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Global agricultural land use3,706,575,0005,791,5001,500,000,00015,000,00010.07%Suzuki & Dressell 1999
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Total coverage PA Categories I-VI4,636,531,6877,244,5511,876,340,70018,763,40712.60%Chape et al 2003
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Total global PAs (2006)4,843,258,0007,567,5601,960,000,00019,600,00013.16%
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Africa7,467,891,66511,668,5343,022,153,20030,221,53220.29%Wikipedia
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Total global forest9,561,423,30514,936,0963,869,455,00038,694,55025.97%WRI 2003
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Minimum global forest coverage10,131,100,00015,826,0004,100,000,00041,000,00027.52%Dixon, et al. 1994
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Global grazing land use14,826,300,00023,166,0006,000,000,00060,000,00040.28%Suzuki & Dressell 1999
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World's total land surface36,803,769,27957,505,65714,893,980,000148,939,800100%%http://www.net-comber.com/worldarea.html
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(Note: 1 ha = 10,000 square meters)
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Area conversions