Orders of magnitude (area)

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An area of one square kilometre consists of 100 hectares each containing 10000 square metres.

This page is a progressive and labeled list of the SI area orders of magnitude, with certain examples appended to some list objects.

List of orders of magnitude for area
Factor (m2) Multiple Value Item
10-3300 10-33 cm2 roughly the area of an atom
...
10−70   2.6×10−70 m2 Planck area, \frac{G \hbar}{c^3}[1]
10−52   10−52 m2 1 shed[2]
...
10−30 1 square femtometre (fm2)    
10−28   10−28 m2 1 barn, roughly the cross-sectional area of an uranium nucleus[3]
10−24 1 square picometre (pm2)    
10−20 1 square angstrom (Å2)    
10−19 5×10−19 m2 Area of a lipid bilayer, per molecule[4]
7.5-26×10−19 m2 Surface area of the 20 standard amino acids[5]
10−18 1 square nanometre (nm2)    
10−16 1×10−16 m2 Globular proteins: solvent-accessible surface area of a typical globular protein, having a typical molecular weight of ~35000 daltons (quite variable)[6]
10−14 1.7×10−14 m2 Cross-sectional area of a nuclear pore complex in vertebrates[7]
10−12 1 square micrometre (μm2) 6×10−12 m2 Surface area of an E. coli bacterium[8]
10−10   1×10−10 m2 Surface area of a red blood cell[9]
10−9   6-110×10−9 m2 Range of common LCD screen pixel sizes[10]
  7×10−9 m2 Area of a dot printed using 300 dots per inch resolution[11]
  8×10−9 m2 Cross-sectional area of a straight human hair that is 100 um[12] in diameter[13]
List of orders of magnitude for areas 10−8 to 10−1 square metres
Factor (m2) Multiple Value Item
10−8   5.5×10−8 m2 Size of a pixel on a typical modern computer display
10−7   2-4×10−7 m2 Cross-sectional area of a mechanical pencil lead (0.5-0.7 mm in diameter)[14]
10−6 1 square millimetre (mm2) 1-2 mm2 Area of a human fovea[15]
2 mm2 Area of the head of a pin
10−5   30-50 mm2 Area of a 6-8 mm hole punched in a piece of paper by a hole punch[16]
10−4 1 square centimetre (cm2) 2.9 cm2 Area of one side of a U.S. penny[17][18]
5 cm2 Area of a typical postage stamp
10−3   11 cm2 Area of a human retina[19]
46 cm2 Area of the face of a credit card[20]
48 cm2 Largest side of a cigarette box
10−2 1 square decimetre (dm2) 0.01 m2 Index card (3 × 5 inches)[21]
0.060 m2 American letter paper (11 × 8.5 inches, "A" size)
0.0625 m2 International A4 paper (210 × 297 mm)
0.093 m2 1 square foot[22]
10−1   0.125 m2 International A3 paper (297 × 420 mm)
0.18 m2 Surface area of a basketball (diameter 24 cm)[23][24]
0.250 m2 International A2 paper (420 × 594 mm)
0.500 m2 International A1 paper (594 × 841 mm)
List of orders of magnitude for areas 100 to 107 square metres.
Factor (m2) Multiple Value Item
100 1 square metre 1 m2 International A0 paper (841 × 1189 mm)
1.73 m2 A number commonly used as the average body surface area of a human[25]
2–4 m2 Area of the top of an office desk
101   10–20 m2 A parking space
70 m2 Approximate surface area of a human lung[26]
102 1 square decametre (dam2) 100 m2 One are (a)
162 m2 Size of a volleyball court (18 × 9 metres)[27]
202 m2 Floor area of a median suburban three-bedroom house in the US in 2010: 2,169 sq ft (201.5 m2)[28]
261 m2 Size of a tennis court[29]
103   1,250 m2 Surface area of the water in an Olympic-size swimming pool[30]
4,047 m2 1 acre[31]
5,400 m2 Size of an American football field[32][33]
7,140 m2 Size of a typical football (soccer) field[34][35]
104 1 square hectometre (hm2) 104 m2 Area of a city block (very approximate)[36]
10,000 m2 1 hectare (ha)[37]
53,000 m2 Base of the Great Pyramid of Giza[38][39]
105   190,000 m2 Irish National Botanic Gardens[citation needed]
440,000 m2 Vatican City[40]
600,000 m2 Total floor area of the Pentagon[41]
106 1 square kilometre (km2) 2 km2 Monaco (country ranked 192nd by area)[42]
2.59 km2 1 square mile[43]
2.9 km2 City of London (not all of modern London)[44]
107   59.5 km2 Manhattan Island (land area)[45]
61 km2 San Marino[46]
List of orders of magnitude for areas 108 to 1014 square metres.
Factor (m2) Multiple Value Item
108   105 km2 Paris (inner city only)[47]
~120 km2 Walt Disney World[48]
272 km2 Taipei City[49]
630 km2 Toronto[50]
109   1100 km2 Hong Kong[51]
1290 km2 Los Angeles, California, USA (city)[52]
1800 km2 Surface area of a typical neutron star[citation needed]
1962 km2 Jacksonville, Florida; largest city in the Continental US[citation needed]
2188 km2 Tokyo[53]
5700 km2 Bali[citation needed]
8028 km2 Community of Madrid, Spain[citation needed]
1010   11,000 km2 Jamaica[54]
68,870 km2 Lake Victoria[55]
84,000 km2 Austria[56]
1011   100,000 km2 South Korea[57]
167,996 km2 Jiuquan in China; (largest city in the world)[citation needed]
300,000 km2 Italy[58]
357,000 km2 Germany[59]
377,900 km2 Japan[60]
510,000 km2 Spain[61]
780,000 km2 Turkey[62]
1012 1 square megametre (Mm2) 1.0 Mm2 Egypt (country ranked 29th by area)[63]
3.10 Mm2 Sakha (Yakutia) Republic in Russia (largest subnational governing body)[citation needed]
7.74 Mm2 Australia (country ranked 6th by area)[64]
9 Mm2 Largest extent of the Roman Empire[citation needed]
1013   10 Mm2 Canada (including water)[65]
14 Mm2 Antarctica[66]
14 Mm2 Arable land worldwide[67]
17 Mm2 Russia (country ranked 1st by area)[68]
30 Mm2 Africa[69]
36 Mm2 Largest extent of the British Empire[citation needed]
38 Mm2 Surface area of the Moon[70]
77 Mm2 Atlantic Ocean[71]
1014   144 Mm2 Surface area of Mars[72]
150 Mm2 Land area of Earth[73]
156 Mm2 Pacific Ocean[74]
360 Mm2 Water area of Earth[73]
510 Mm2 Total surface area of Earth[73]
List of orders of magnitude for areas 1015 to 1026 square metres.
Factor (m2) Multiple Value Item
1015   1x1015 m2 Surface area of the white dwarf, Van Maanen's star
7.6x1015 m2 Neptune[75]
1016   4.3x1016 m2 Saturn[76]
6.1x1016 m2 Jupiter[77], the "surface" area of the spheroid (calculated from the mean radius as reported by NASA). The cross-sectional area of Jupiter, which is the same as the "circle" of Jupiter seen by an approaching spacecraft, is exactly four times smaller than the surface-area of the overall sphere, which in the case of Jupiter is approximately 1.535e+16 square meters.
1017   2-6x1017 m2 Surface area of the Brown Dwarf star CT Chamaeleontis.
4.6×1017 m2 Area swept by the Moon's orbit of Earth
1018 1 square gigametre (Gm2) 6.1×1018 m2 Surface area of the Sun[78]
1019   3.0x1019 m2 Surface area of the star Vega
1020      
1021   1.5×1021 m2 Surface area of the star Albireo A. [N.B. the Albireo 'star' is the beak of the Cygnus constellation, and was thought to be a double-star, the amber-yellow Albireo_A plus the blue-white Albireo_B, but in fact Albireo_A is now known to *also* itself be a double-star system. Thus, this entry needs to be edited for clarity -- there is no such thing as "the star" Albireo_A anymore.]
1022   1.1×1022 m2 Area swept by Mercury's orbit around the Sun
3.7×1022 m2 Area swept by Venus' orbit around the Sun
7.1×1022 m2 Area swept by Earth's orbit around the Sun
1023   1.6×1023 m2 Area swept by Mars' orbit around the Sun
2.81×1023 m2 Surface area of a sphere with a radius of 1 AU
1024 1 square terametre (Tm2) 1.9×1024 m2 Area swept by Jupiter's orbit around the Sun
6.4×1024 m2 Area swept by Saturn's orbit around the Sun
8.5×1024 m2 Surface area of the red supergiant star Betelgeuse
1025   2.4×1025 m2 Surface area of the largest known star, the Hypergiant VY Canis Majoris
2.6×1025 m2 Area swept by Uranus' orbit around the Sun
6.4×1025 m2 Area swept by Neptune's orbit around the Sun
1026   1.1×1026 m2 Area swept by Pluto's orbit around the Sun
List of orders of magnitude for areas 1027 square metres and larger.
Factor (m2) Value Item
...
1032 2×1032 m2 Roughly the surface area of an Oort Cloud
3×1032 m2 Roughly the surface area of a Bok globule
...
1034 3×1034 m2 Roughly the surface area of The Bubble
...
1041 7×1041 m2 Roughly the area of Milky Way's galactic disk

References [edit]

  1. ^ Calculated: square of the Planck length = (1.62e-35 m)^2 = 2.6e-70 m^2
  2. ^ Russ Rowlett (September 1, 2004). "Units: S". How Many? A Dictionary of Units of Measurement. University of North Carolina at Chapel Hill. Retrieved 2011-10-25. 
  3. ^ "Other non-SI units". SI brochure. BIPM. Retrieved 2011-10-25. 
  4. ^ ""Rule of thumb" for the area per molecule in lipid bilayer". BioNumbers. Retrieved 2011-10-09. 
  5. ^ "Individual Properties of the 20 Standard Amino Acids: Properties and Images". The Amino Acid Repository. Jena Library of Biological Macromolecules. Retrieved 2011-10-10. 
  6. ^ Janin, J. (1979). "Surface and inside volumes in globular proteins". Nature 277 (5696): 491–492. doi:10.1038/277491a0. PMID 763335.  Text "[E. ]" ignored (help); Text "L. " ignored (help) edit
  7. ^ "The Nuclear Pore Complex". UIUC Theoretical and Computational Biophysics Group. Retrieved 2011-10-14. 
  8. ^ "E. coli Statistics". The CyberCell Database. Retrieved 2011-09-11. 
  9. ^ Marcelli, Gianluca; Parker, Kim H.; Winlove, C. Peter (2005). "Thermal Fluctuations of Red Blood Cell Membrane via a Constant-Area Particle-Dynamics Model". Biophysical Journal 89 (4): 2473–2480. Bibcode:2005BpJ....89.2473M. doi:10.1529/biophysj.104.056168. Retrieved 2011-09-27. 
  10. ^ Calculated: Smallest and largest common pitches were 77 micrometers and 337 micrometers. (77e-6 m)^2 ~= 6e-9 m^2. (337e-6 m)^2 ~= 114e-9 m^2 ~= 110e-9 m^2
  11. ^ Calculated: (300 dots per inch / 2.54e-2 m/inch)^(-2) = 7.2e-9 m^2
  12. ^ "Hair Fiber Composition". Retrieved 2011-09-30. 
  13. ^ Calculated: 100 um in diameter => pi * ((1e-4 m)/2)**2 = 7.9e-9 m^2
  14. ^ Calculated: pi * (0.5mm/2)^2 = 2.0e-7 m^2 and pi * (0.7mm/2)^2 = 3.8e-7 m^2)
  15. ^ "Part XIII: Facts and Figures concerning the human retina". Webvision. University of Utah. Retrieved 2011-09-28. 
  16. ^ Calculated: ((6e-3 m)/2)**2 * pi = 2.8e-5 m^2 and ((8e-3 m)/2)**2 * pi = 5.0e-5 m^2
  17. ^ "Coin specifications". United States Mint. Retrieved 2011-12-28. 
  18. ^ Calculated: area = pi * diameter^2 / 4 = 3.14 * (19.05e-3 m)^2 = 2.850e-4 m^2
  19. ^ Taylor, Enid; Jennings, Alan (1971). "Calculation of total retinal area". Brit. J. Ophthal. 55 (4): 262. PMC 1208280. PMID 5572268. Retrieved 2011-09-27. 
  20. ^ "Credit Card Dimensions". Retrieved 2011-09-30. 
  21. ^ Calculated: 3 inches * 5 inches * (2.54e-2 m/inch)^2 = 9.7e-3 m^2 ~= 0.01 m^2
  22. ^ Calculated: 1 foot * 1 foot * (0.3048 meters / foot)^2 = 0.093 m^2
  23. ^ "Rules of the Game". USA Basketball. Retrieved 28 October 2011. 
  24. ^ Calculated: 29.5-29.75 inch circumference * 2.54 cm / in = 23.85-24.05 cm diameter => radius = 0.119-0.120 m => Area = 4 * pi * (0.119 m)^2 = 0.18 m^2
  25. ^ Sacco, Joseph J.; Botten, Joanne; Macbeth, Fergus; Bagust, Adrian; Clark, Peter (2010). "The Average Body Surface Area of Adult Cancer Patients in the UK: A Multicentre Retrospective Study". PLoS ONE 5 (1): e8933. Bibcode:2010PLoSO...5.8933S. doi:10.1371/journal.pone.0008933. Retrieved 2011-09-27. 
  26. ^ Notter, Robert H. (2000). Lung surfactants: basic science and clinical applications. New York, N.Y: Marcel Dekker. p. 120. ISBN 0-8247-0401-0. Retrieved 2011-09-27. 
  27. ^ "Section 1.1" (PDF). Official Volleyball Rules 2011-2012. FIVB. 2010. Retrieved 2011-10-27. "The playing court is a rectangle measuring 18 x 9 m, surrounded by a free zone which is a minimum of 3 m wide on all sides." 
  28. ^ "Median and Average Square Feet of Floor Area in New Single-Family Houses Completed by Location" (PDF). US Census Bureau. Retrieved 2011-09-26. 
  29. ^ "Area of a Tennis Court". The Physics Factbook. Retrieved 2011-09-27. 
  30. ^ Calculated: 50 m * 25 m = 1250 m^2
  31. ^ "General Tables of Units of Measuremen". NIST. Retrieved 28 October 2011. "4046.87" 
  32. ^ "What are the Dimensions of a Football Field". Dimensions Guide. Retrieved 2011-10-27. 
  33. ^ Calculated: 360 feet * 160 feet * (0.3048 m/ft)^2 = 5351 m^2 ~= 5400 m^2
  34. ^ "How Big Is An Olympic Soccer Field?". LIVESTRONG.COM. Retrieved 4 January 2012. "For the Olympics, fields are supposed to measure exactly 105 meters long and 68 meters wide" 
  35. ^ Calculated: 105 m * 68 m = 7140 m^2
  36. ^ "City blocks differ in size". Retrieved 2011-09-29. 
  37. ^ "General Tables of Units of Measuremen". NIST. Retrieved 28 October 2011. 
  38. ^ Greenberg, Ralph. "THE GREAT PYRAMID OF GIZA (Some Elegant Numerical Relationships)". Retrieved 4 January 2012. "average length of the four sides is 230.364 meters" 
  39. ^ Calculated: 230.364 m^2 ~= 53068 m^2
  40. ^ "Holy See (Vatican City)". The World Factbook. Central Intelligence Agency. Retrieved 2011-10-28. 
  41. ^ "The Pentagon - George Bergstrom". Great Buildings Online. Retrieved 28 October 2011. "Floor area of 6.5 million square feet, 34 acres, 13.8 hectares, of which 3.7 million square feet are used for offices." 
  42. ^ "Monaco". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-30. 
  43. ^ Calculated: 1 mile * 1 mile * (1.61 km / mile)^2 = 2.59 km^2
  44. ^ "Jurisdictions: London". The International Finance Centre Portal. Retrieved 28 October 2011. 
  45. ^ "New York -- Place and County Subdivision: Population, Housing Units, Area, and Density 2000". Census 2000 Summary File 1. US Census Bureau. Retrieved 2011-10-28. 
  46. ^ "San Marino". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-30. 
  47. ^ "Paris" (PDF). INSEE. Retrieved 28 October 2011. 
  48. ^ "Walt Disney World Resort". Disney By The Numb3rs. Retrieved 28 October 2011. "30,500 acres" 
  49. ^ "Appendix II Statistics". Taipei Yearbook 2010. Retrieved 28 October 2011. 
  50. ^ "Population and Dwelling Counts". 2001 Census. Statistics Canada. Retrieved 28 October 2011. 
  51. ^ "Hong Kong". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  52. ^ "California by Place: Los Angeles city". US Census. Retrieved 28 October 2011. "498.29 square miles" 
  53. ^ "OVERVIEW OF TOKYO". Tokyo Metropolitan Government. Retrieved 28 October 2011. 
  54. ^ "Jamaica". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  55. ^ "Lake Profile: Victoria". World Lakes. LakeNet. Retrieved 28 October 2011. 
  56. ^ "Austria". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  57. ^ "South Korea". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  58. ^ "Italy". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  59. ^ "Germany". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  60. ^ "Japan". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  61. ^ "Spain". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  62. ^ "Turkey". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  63. ^ "Egypt". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  64. ^ "Australia". The World Factbook. Central Intelligence Agency. Retrieved 2011-10-28. 
  65. ^ "Canada". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  66. ^ "Antarctica". The World Factbook. Central Intelligence Agency. Retrieved 2011-10-28. 
  67. ^ "FAO Resources page". FAO.org. 2010. 
  68. ^ "Russia". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
  69. ^ "Map of Africa". Worldatlas.com. Retrieved 4 January 2012. "30,065,000 sq km" 
  70. ^ "Earth's Moon: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
  71. ^ "The World Factbook: Atlantic Ocean". Central Intelligence Agency. 2011-03-24. Retrieved 2011-09-30. 
  72. ^ "Mars: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
  73. ^ a b c "The World Factbook: World". Central Intelligence Agency. 2011-08-31. Retrieved 2011-09-27. 
  74. ^ "The World Factbook: Pacific Ocean". Central Intelligence Agency. 2011-11-17. Retrieved 2011-09-30. 
  75. ^ "Neptune: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
  76. ^ "Saturn: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
  77. ^ "Jupiter: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
  78. ^ "Sun: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
Quantity
See also
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