The Orders of magnitude (length) reference article from the English Wikipedia on 24-Jul-2004
(provided by Fixed Reference: snapshots of Wikipedia from

Orders of magnitude (length)

You can make a difference by sponsoring a child
Orders of magnitude
Length - Mass - Time - Area - Volume - Power - Temperature - Numbers - Data - U.S. money
Related articles
SI base units - SI derived units - SI prefixes

List of Orders of Magnitude for length
Decade of Length Length using SI prefixes Length of Item Item
10-35 m 1.6×10-35 m Planck length; lengths smaller than this do not make any physical sense, according to current theories of physics
10-24 m 1 yoctometre (ym)
10-21 m 1 zeptometre (zm)
10-18 m 1 attometre (am) size of a quark
sensitivity of the LIGO detector for gravitational waves
10-15 m 1 femtometre (fm) size of a proton
classical electron
10-14 m 10 fm scale of the atomic nucleus
range of the weak nuclear force
10-13 m 100 fm Compton wavelength of electron
10-12 m 1 picometre (pm) distance between atomic nuclei in a white dwarf
wavelength of gamma rays
5 pm wavelength of shortest X-rays
10-11 m 10 pm 25 pm radius of hydrogen atom
31 pm radius of helium atom
10-10 m 100 pm wavelength of X rays
100 pm Ångström
100 pm (0.1 nm) covalent radius of sulfur atom
126 pm (0.126 nm) covalent radius of ruthenium atom
135 pm (0.135 nm) covalent radius of technetium atom
153 pm (0.153 nm) covalent radius of silver atom
154 pm (0.154 nm) covalent bond (carbon>C-C).
155 pm (0.155 nm) covalent radius of zirconium atom
175 pm (0.175 nm) covalent radius of thulium atom
225 pm (0.225 nm) covalent radius of caesium atom
500 pm (0.50 nm) protein alpha helix>α helix
10-9 m 1 nanometre (nm) 2 nm diameter of DNA helix
10-8 m 10 nm 20 nm thickness of bacterial flagellum
40 nm extreme ultraviolet wavelength
90 nm human immunodeficiency virus (HIV) (generally, viruses range in size from 20 nm to 450 nm)
100 nm 90% of particles in wood smoke are smaller than this
10-7 m 100 nm size of chromosomes
100 nm maximum particle size that can fit through a surgical mask
120 nm maximum particle size that can fit through a ULPA filter[1]
280 nm near ultraviolet wavelength
300 nm maximum particle size that can fit through a HEPA filter
380-430 nm wavelength of violet light -- see color and optical spectrum
430-450 nm wavelength of indigo light
450-500 nm wavelength of blue light
500-520 nm wavelength of cyan light
520-565 nm wavelength of green light
565-590 nm wavelength of yellow light
590-625 nm orange light
625-740 nm wavelength of red light
10-6 m 1 micrometre aka micron (õm) 1-10 õm diameter of typical bacterium
1.55 õm wavelength of light used in optical fibre
6-8 õm diameter of a human red blood cell
6 õm anthrax spore
7 õm width of strand of spider web [1]
7 õm nucleus of typical eukariotic cell
10-5 m 10 õm 10 õm typical size of a fog, mist or cloud water droplet
10 õm width of cotton fibre
10.6 õm wavelength of light emitted by a carbon dioxide laser
12 õm width of acrylic fibre
13 õm width of nylon fibre
14 õm width of polyester fibre
15 õm width of silk fibre
17 õm dust mite excreta ù
20 õm width of wool fibre
25.4 õm 1/1000 inch, commonly referred to as 1 mil
50 õm Euglena>Euglena gracilis, a flagellate protist
80 õm average width of human hair (ranges from 18 to 180 õm)
10-4 m 100 õm 125 õm dust mite
200 õm typical length of Paramecium caudatum, a ciliate protist
300 õm diameter of Thiomargarita namibiensis, the largest bacterium ever discovered
500 õm MEMS micro-engine
500 õm diameter of a human ovum
500 õm typical length of Amoeba proteus, an amoeboid protist
10-3 m 1 millimetre (mm) 2.54 mm distance between pins in old DIP (dual-inline-pins) electronic components
5 mm length of average red ant
7.62 mm common military ammunition size
10-2 m 1 centimetre (cm) 1.5 cm length of a large mosquito
2.54 cm 1 inch
3.1 cm 1 attoparsec (10-18 parsecs)
4.267 cm diameter of a golfball
10-1 m 1 decimetre (dm) 10 cm wavelength of the highest UHF radio frequency, 3 GHz
10 cm diameter of the cervix upon entering the second stage of labour
10.16 cm Hand using in measuring height of horses (4 inches)
12 cm wavelength of the 2.45 GHz ISM radio band
15 cm height of a Lilliputian from Gulliver's Travels
30.48 cm 1 foot
50-65 cm a pizote's tail
66 cm length of the longest pine cones (produced by the sugar pine)
89 cm average adult height of a Hobbit
90 cm average length of a rapier, a fencing sword
91 cm 1 yard
1 m 1 metre 1 m wavelength of the lowest UHF and highest VHF radio frequency, 300 MHz
1.7 m (5 feet 7 inches) average person's height
1.435m Standard gauge of railway track
2.77 - 3.44 m wavelength of the broadcast radio FM band 108 - 87 MHz
3.048 m (10 feet) height of the basket in basketball
5.5 m height of tallest animal, the giraffe
10 m 1 decametre (dam) 10 m wavelength of the lowest VHF and highest shortwave radio frequency, 30 MHz
18.44 m distance between the pitcher's rubber and home plate on a baseball field
20 m length of a cricket pitch
21 m height of High Force waterfall in England.
23 m height of the obelisk of the Place de la Concorde, Paris.
25 m wavelength of the broadcast radio shortwave band at 12 MHz
27.43 m distance between bases on a baseball field
30 m length of a blue whale, the largest animal
31 m wavelength of the broadcast radio shortwave band at 9.7 MHz
40 m average depth beneath the seabed of the Channel tunnel
49 m width of an American football field (53 1/3 yards)
49 m wavelength of the broadcast radio shortwave band at 6.1 MHz
52 m height of Niagara Falls
55 m height of the Leaning Tower of Pisa
60 m Pyramid of Djoser
70 m width of soccer field
70 m length of the Bayeux Tapestry
91.44 m length of an American football field (100 yards, measured between the goal lines)
100 m 1 hectometre (hm) 100 m wavelength of the lowest shortwave radio frequency and highest medium wave radio frequency, 3 MHz
105 m length of a soccer field
109.73 m total length of an American football field (120 yards, including the end zones)
112.34 m height of the world's tallest tree, a Coast redwood
137 m height of the Great Pyramid of Giza
147 m original height of the Great Pyramid of Giza
168 m height of the Bungsberg, highest point in Schleswig-Holstein, Germany
187 m shortest wavelength of the broadcast radio AM band, 1600 kHz
193 m the approximate length of New Jersey State Highway 59
244 m height of the City Gate building in Ramat-Gan, Israel
300 m height of the Eiffel Tower
340 m distance sound travels in air in one second; see speed of sound
400-500 m approximate heights of the world's tallest skyscrapers of the past 70 years.
1,776 ft) height of the planned Freedom Tower at the World Trade Center site
553.33 m height of the CN Tower, the world's tallest free-standing land structure
555 m longest wavelength of the broadcast radio AM band, 540 kHz
647 m height of the Warszawa radio mast, formerly the tallest man-made structure, collapsed in 1991
1,000 m 1 kilometre (km) 1 km wavelength of the lowest medium wave radio frequency, 300 kHz
1609 m 1 international mile
1852 m 1 nautical mile
8850 m height of the highest mountain, Mount Everest
10,000 m 10 km 11,518 m Mindanao deep
35 km width of the English Channel
100,000 m 100 km 111 km one degree of latitude on Earth
106 m 1,000 km = 1 megametre (Mm) 3,480 km diameter of the Moon
6,400 km length of the Great Wall of China
107 m 10,000 km equatorial diameter of the Earth
40,075 km length of the Earth's equator
108 m 100,000 km 384,000 km Moon's orbital distance from Earth
109 m 1 million km = 1 gigametre (Gm) 1,390,000 km diameter of the Sun
1010 m 10 million km
1011 m 100 million km 150 million km 1 astronomical unit (AU); mean distance between Earth and Sun.
1012 m 1000 million km = 1 terametre (Tm) 1.4 × 109 km Saturn from Sun
5.9 × 109 km Pluto from Sun
1013 m 10 Tm 13.8 × 109 km distance of the Voyager 1 spacecraft from sun (May 2004), the farthest man-made object so far
1014 m 100 Tm
1015 m 1 petametre (Pm) 9.5 × 1012 km = 1 light year distance travelled by light in one year
1016 m 10 Pm 3.2616 light years (3.08568×1016 m) 1 parsec
4.2 light years distance to nearest star (Proxima Centauri)
1017 m 100 Pm
1018 m 1 exametre (Em)
1019 m 10 Em
1020 m 100 Em 100,000 light years diameter of galactic disk of Milky Way Galaxy
1021 m 1 zettametre (Zm) 52 kiloparsecs (1.6 × 1021 m) distance to the Large Magellanic Cloud (a dwarf galaxy orbiting the Milky Way)
54 kiloparsecs (1.66 × 1021 m) distance to the Small Magellanic Cloud (another dwarf galaxy orbiting the Milky Way)
1022 m 10 Zm 22.3 Zm (2.36 million light years or 725 kiloparsecs) distance to Andromeda Galaxy
50 Zm (1.6 Mpc) Local Group of galaxy>galaxies
1023 m 100 Zm 300-600 Zm (10-20 megaparsecs) Virgo cluster of galaxy>galaxies
1024 m 1 yottametre (Ym) 200 million light years (2 Ym, 60 megaparsecs) diameter of the Local Supercluster
500 million light years (5 Ym, 150 megaparsecs) Great Wall, the largest observed superstructure in the universe
1025 m 10 Ym
1026 m 100 Ym 10 × 109 light years estimated distance to certain quasars, the farthest observed objects in the universe
13.7 × 109 light years distance the cosmic background radiation has traveled since the Big bang
1027 m

See also

External links