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Orders of magnitude (mass)

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(Redirected from Centigram) Comparison of a wide range of masses

An overview of ranges of mass

To help compare different orders of magnitude, the following lists describe various mass levels between 10 kg and 10 kg. The least massive thing listed here is a graviton, and the most massive thing is the observable universe. Typically, an object having greater mass will also have greater weight (see mass versus weight), especially if the objects are subject to the same gravitational field strength.

Units of mass

SI multiples of gram (g)
Submultiples Multiples
Value SI symbol Name Value SI symbol Name
10 g dg decigram 10 g dag decagram
10 g cg centigram 10 g hg hectogram
10 g mg milligram 10 g kg kilogram
10 g μg microgram (mcg) 10 g Mg megagram (tonne)
10 g ng nanogram 10 g Gg gigagram
10 g pg picogram 10 g Tg teragram
10 g fg femtogram 10 g Pg petagram
10 g ag attogram 10 g Eg exagram
10 g zg zeptogram 10 g Zg zettagram
10 g yg yoctogram 10 g Yg yottagram
10 g rg rontogram 10 g Rg ronnagram
10 g qg quectogram 10 g Qg quettagram
Common prefixes are in bold face.

The table at right is based on the kilogram (kg), the base unit of mass in the International System of Units (SI). The kilogram is the only standard unit to include an SI prefix (kilo-) as part of its name. The gram (10 kg) is an SI derived unit of mass. However, the names of all SI mass units are based on gram, rather than on kilogram; thus 10 kg is a megagram (10 g), not a *kilokilogram.

The tonne (t) is an SI-compatible unit of mass equal to a megagram (Mg), or 10 kg. The unit is in common use for masses above about 10 kg and is often used with SI prefixes. For example, a gigagram (Gg) or 10 g is 10 tonnes, commonly called a kilotonne.

Other units

Other units of mass are also in use. Historical units include the stone, the pound, the carat, and the grain.

For subatomic particles, physicists use the mass equivalent to the energy represented by an electronvolt (eV). At the atomic level, chemists use the mass of one-twelfth of a carbon-12 atom (the dalton). Astronomers use the mass of the sun (M☉).

The least massive things: below 10 kg

Unlike other physical quantities, mass–energy does not have an a priori expected minimal quantity, or an observed basic quantum as in the case of electric charge. Planck's law allows for the existence of photons with arbitrarily low energies. Consequently, there can only ever be an experimental upper bound on the mass of a supposedly massless particle; in the case of the photon, this confirmed upper bound is of the order of 3×10 eV/c = 10 kg.

Factor (kg) Value Item
10 1.07×10 kg Graviton, upper bound (6×10 eV/c)
10 4.2×10 kg Mass equivalent of the energy of a photon at the peak of the spectrum of the cosmic microwave background radiation (0.235 meV/c)
10 1.8×10 kg 1 eV/c, the mass equivalent of one electronvolt
3.6×10 kg Electron neutrino, upper limit on mass (2 eV/c)
10
quectogram (qg)
10 9.11×10 kg Electron (511 keV/c), the lightest elementary particle with a measured nonzero rest mass
10
rontogram (rg) 		3.0–5.5×10 kg Up quark (as a current quark) (1.7–3.1 MeV/c)
10 1.9×10 kg Muon (106 MeV/c)
10
yoctogram (yg) 		1.661×10 kg Dalton (Da), a.k.a. unified atomic mass unit (u)
1.673×10 kg Proton (938.3 MeV/c)
1.674×10 kg Hydrogen atom, the lightest atom
1.675×10 kg Neutron (939.6 MeV/c)
10 1.2×10 kg Lithium atom (6.941 Da)
3.0×10 kg Water molecule (18.015 Da)
8.0×10 kg Titanium atom (47.867 Da)
10 1.1×10 kg Copper atom (63.546 Da)
1.6×10 kg Z boson (91.2 GeV/c)
2.2×10 kg Higgs boson (125 GeV/c)
3.1×10 kg Top quark (173 GeV/c), the heaviest known elementary particle
3.2×10 kg Caffeine molecule (194 Da)
3.5×10 kg Lead-208 atom
4.9×10 kg Oganesson-294 atom, the heaviest known nuclide

10 to 10 kg

Factor (kg) Value Item
10
zeptogram (zg) 		1.2×10 kg Buckyball molecule (720 Da)
10 1.4×10 kg Ubiquitin, a small protein (8.6 kDa)
5.5×10 kg A typical protein (median size of roughly 300 amino acids ≈ 33 kDa)
10 1.1×10 kg Haemoglobin A molecule in blood (64.5 kDa)
10
attogram (ag) 		1.65×10 kg Double-stranded DNA molecule consisting of 1,578 base pairs (995 kDa)
4.3×10 kg Prokaryotic ribosome (2.6 MDa)
7.1×10 kg Eukaryotic ribosome (4.3 MDa)
7.6×10 kg Brome mosaic virus, a small virus (4.6 MDa)
10 3×10 kg Synaptic vesicle in rats (16.1 ± 3.8 MDa)
6.8×10 kg Tobacco mosaic virus (41 MDa)
10 1.1×10 kg Nuclear pore complex in yeast (66 MDa)
2.5×10 kg Human adenovirus (150 MDa)

10 to 10 kg

Factor (kg) Value Item
10
femtogram (fg) 		1×10 kg HIV-1 virus
4.7×10 kg DNA sequence of length 4.6 Mbp, the weight of the E. coli genome
10 ~1×10 kg Vaccinia virus, a large virus
1.1×10 kg Mass equivalent of 1 joule
10 3×10 kg Prochlorococcus cyanobacteria, the smallest (and possibly most plentiful) photosynthetic organism on Earth
10
picogram (pg) 		1×10 kg E. coli bacterium (wet weight)
6×10 kg DNA in a typical diploid human cell (approximate)
10 2.2×10 kg Human sperm cell
6×10 kg Yeast cell (quite variable)
10 1.5×10 kg Dunaliella salina, a green alga (dry weight)

10 to 10 kg

Scanning electron micrograph showing grains of sand

Factor (kg) Value Item
10
nanogram (ng) 		1×10 kg Average human cell (1 nanogram)
2–3×10 kg HeLa human cell
8×10 kg Grain of birch pollen
10    
10 2.5×10 kg Grain of maize pollen
3.5×10 kg Very fine grain of sand (0.063 mm diameter, 350 nanograms)
10
microgram (μg) 		3.6×10 kg Human ovum
2.4×10 kg US RDA for vitamin B12 for adults
10 10 kg Speculated approximate lower limit of the mass of a primordial black hole
1.5×10 kg US RDA for vitamin D for adults
~2×10 kg Uncertainty in the mass of the International Prototype of the Kilogram (IPK) (±~20 μg)
2.2×10 kg Planck mass, can be expressed as the mass of a 2 Planck Length radius black hole
~7×10 kg One eyelash hair (approximate)
10 1.5×10 kg US RDA for iodine for adults
2–3×10 kg Fruit fly (dry weight)

10 to 1 kg

Factor (kg) Value Item
10
milligram (mg) 		2.5×10 kg Mosquitoes, common smaller species (about 2.5 milligrams), grain of salt or sand, medicines are typically expressed in milligrams
10
centigram (cg) 		1.1×10 kg Small granule of quartz (2 mm diameter, 11 milligrams)
2×10 kg Adult housefly (Musca domestica, 21.4 milligrams)
10
decigram (dg) 		0.27–2.0×10 kg Range of amounts of caffeine in one cup of coffee (27–200 milligrams)
1.5×10 kg A frame of 35mm motion picture film (157 milligrams)
2×10 kg Metric carat (200 milligrams)
10
gram (g) 		1×10 kg One cubic centimeter of water (1 gram)
1×10 kg US dollar bill (1 gram)
~1×10 kg Two raisins (approximately 1 gram)
~8×10 kg Coins of one euro (7.5 grams), one U.S. dollar (8.1 grams) and one Canadian loonie (7 grams , 6.27 grams )
10
decagram (dag) 		1.2×10 kg Mass of one mole (6.02214×10 atoms) of carbon-12 (12 grams)
1.37×10 kg Amount of ethanol defined as one standard drink in the U.S. (13.7 grams)
2–4×10 kg Adult mouse (Mus musculus, 20–40 grams)
2.8×10 kg Ounce (avoirdupois) (28.3495 grams)
4.7×10 kg Mass equivalent of the energy that is 1 megaton of TNT equivalent
10
hectogram   (hg) 		0.1-0.2 kg An orange (100–200 grams)
0.142-0.149 kg A baseball used in the major league.
0.454 kg Pound (avoirdupois) (453.6 grams)

1 kg to 10 kg

Iron weights up to 50 kilograms depicted in Dictionnaire encyclopédique de l'épicerie et des industries annexes.
Factor (kg) Value Item
1 kg
kilogram (kg) 		1 kg One litre (0.001 m) of water
1–3 kg Smallest breed of dog (Chihuahua)
1–3 kg Typical laptop computer, 2010
1–3 kg Adult domestic tortoise
2.5–4 kg Newborn human baby
4.0 kg Women's shot
4–5 kg Housecat
7.26 kg Men's shot
10 9–27 kg Medium-sized dog
10–30 kg A CRT computer monitor or television set
50 kg Large dog breed (Great Dane)
70 kg Adult human
10 130–180 kg Mature lion, female (130 kg) and male (180 kg)
200–250 kg Giant tortoise
240–450 kg Grand piano
400–900 kg Dairy cow
500–500,000 kg A teaspoon (5 ml) of white dwarf material (0.5–500 tonnes)
635 kg Heaviest human in recorded history (Jon Brower Minnoch)
907.2 kg 1 short ton (2000 pounds - U.S.)
10
megagram (Mg) 		1000 kg 1 tonne (U.S. spelling: metric ton)
1000 kg 1 cubic metre of water
1016.05 kg Ton (British) / 1 long ton (2240 pounds - U.S.)
1300–1600 kg Typical passenger cars
2700–6000 kg Adult elephant
10 1.1×10 kg Hubble Space Telescope (11 tonnes)
1.2×10 kg Largest elephant on record (12 tonnes)
1.4×10 kg Big Ben (bell) (14 tonnes)
2.7×10 kg ENIAC computer, 1946 (30 tonnes)
4×10 kg Maximum gross mass (truck + load combined) of a semi-trailer truck in the EU (40–44 tonnes)
5×10–6×10 kg Tank; Bulldozer (50–60 tonnes)
6.0×10 kg Largest single-piece meteorite, Hoba West Meteorite (60 tonnes)
7.3×10 kg Largest dinosaur, Argentinosaurus (73 tonnes)
10 1.74-1.83×10 kg Operational empty weight of a Boeing 747-300
1.8×10 kg Largest animal ever, a blue whale (180 tonnes)
4.2×10 kg International Space Station (417 tonnes)
6×10 kg World's heaviest aircraft: Antonov An-225 (maximum take-off mass: 600 tonnes, payload: 250 tonnes)

10 to 10 kg

Factor (kg) Value Item
10
gigagram (Gg) 		1×10 kg Trunk of the giant sequoia tree named General Sherman, largest living tree by trunk volume (1121 tonnes)
2.0×10 kg Launch mass of the Space Shuttle (2041 tonnes)
6×10 kg Largest clonal colony, the quaking aspen named Pando (largest living organism) (6000 tonnes)
7.8×10 kg Virginia-class nuclear submarine (submerged weight)
10 1×10 kg Annual production of Darjeeling tea
5.2×10 kg RMS Titanic when fully loaded (52,000 tonnes)
9.97×10 kg Heaviest train ever: Australia's BHP Iron Ore, 2001 record (99,700 tonnes)
10 6.6×10 kg Largest ship and largest mobile man-made object, Seawise Giant, when fully loaded (660,000 tonnes)
7×10 kg Heaviest (non-pyramid) building, Palace of the Parliament in Bucharest, Romania
10
teragram (Tg) 		4.3×10 kg Amount of matter converted into energy by the Sun each second
6×10 kg Great Pyramid of Giza
10 6×10 kg Amount of concrete in the Three Gorges Dam, the world's largest concrete structure
10 ~1×10 kg The mass of a primordial black hole with an evaporation time equal to the age of the universe
2×10 kg Amount of water stored in London storage reservoirs (0.2 km)
6×10 kg Total mass of the world's human population
5×10 kg Total biomass of Antarctic krill, one of the most plentiful animal species on the planet in terms of biomass

10 to 10 kg

Factor (kg) Value Item
10
petagram (Pg) 		0.8–2.1×10 kg Global biomass of fish
4×10 kg Global annual human food production
4×10 kg World crude oil production in 2009 (3,843 Mt)
5.5×10 kg A teaspoon (5 ml) of neutron star material (5000 million tonnes)
10 1×10 kg Mass of comet 67P/Churyumov–Gerasimenko
4×10 kg Global annual human carbon dioxide emission
10 1.05×10 kg Global net primary production – the total mass of carbon fixed in organic compounds by photosynthesis each year on Earth
7.2×10 kg Total carbon stored in Earth's atmosphere
10
exagram (Eg) 		2.0×10 kg Total carbon stored in the terrestrial biosphere
3.5×10 kg Total carbon stored in coal deposits worldwide
10 1×10 kg 951 Gaspra, the first asteroid ever to be closely approached by a spacecraft (rough estimate)
1×10 kg Rough estimate of the total carbon content of all organisms on Earth.
3×10 kg Rough estimate of everything produced by the human species.
3.8×10 kg Total carbon stored in the oceans.
10 1.6×10 kg Prometheus, a shepherd satellite for the inner edge of Saturn's F Ring

10 to 10 kg

Factor (kg) Value Item
10
zettagram (Zg) 		5.1×10 kg Earth's atmosphere
5.6×10 kg Hyperion, a moon of Saturn
10 3×10 kg 3 Juno, one of the larger asteroids in the asteroid belt
3×10 kg The rings of Saturn
10 9.4×10 kg Ceres, dwarf planet within the asteroid belt
10
yottagram (Yg) 		1.4×10 kg Earth's oceans
1.5×10 kg Charon, the largest moon of Pluto
2.9–3.7×10 kg The asteroid belt
10 1.3×10 kg Pluto
2.1×10 kg Triton, largest moon of Neptune
7.3×10 kg Earth's Moon
10 1.3×10 kg Titan, largest moon of Saturn
1.5×10 kg Ganymede, largest moon of Jupiter
3.3×10 kg Mercury
6.4×10 kg Mars

10 to 10 kg

Jupiter is the most massive planet in the Solar System.
Factor (kg) Value Item
10
ronnagram (Rg) 		4.9×10 kg Venus
6.0×10 kg Earth
10 3×10 kg Oort cloud
8.7×10 kg Uranus
10 1.0×10 kg Neptune
5.7×10 kg Saturn
10
quettagram (Qg) 		1.9×10 kg Jupiter
10 2–14×10 kg Brown dwarfs (approximate)
10 3×10 kg Barnard's Star, a nearby red dwarf

10 to 10 kg

Factor (kg) Value Item
10 2×10 kg The Sun (one solar mass or M☉ = 1.989×10 kg)
2.8×10 kg Chandrasekhar limit (1.4 M☉)
10 4×10 kg Betelgeuse, a red supergiant star (20 M☉)
10 4–7×10 kg R136a1, the most massive of known stars (230 to 345 M☉)
6–8×10 kg Hyades star cluster (300 to 400 M☉)
10 1.6×10 kg Pleiades star cluster (800 M☉)
10
10 ~10 kg Typical globular cluster in the Milky Way (overall range: 3×10 to 4×10 M☉)
2×10 kg Low end of mass range for giant molecular clouds (1×10 to 1×10 M☉)
7.3×10 kg Jeans mass of a giant molecular cloud at 100 K and density 30 atoms per cubic centimeter;
possible example: Orion molecular cloud complex

10 to 10 kg

Factor (kg) Value Item
10 1.79×10 kg The entire Carina complex.
2.4×10 kg The Gould Belt of stars, including the Sun (1.2×10 M☉)
7–8×10 kg The supermassive black hole at the center of the Milky Way, associated with the radio source Sagittarius A* (3.7±0.2×10 M☉)
8×10 kg Omega centauri, the largest globular cluster in the Milky Way, containing approximately 10 million stars.
10    
10    
10    
10    
10 1.98×10 kg Phoenix A, the largest supermassive black hole, weighing 100 billion solar masses (1×10 M☉)
4×10 kg Visible mass of the Milky Way galaxy

The most massive things: 10 kg and greater

Factor (kg) Value Item
10 1.2×10 kg Milky Way galaxy (5.8×10 M☉)
2–3×10 kg Local Group of galaxies, including the Milky Way (1.29±0.14×10 M☉)
10 5.37×10 kg ESO 146-5, the heaviest known galaxy in the universe
10    
10 1–2×10 kg Local or Virgo Supercluster of galaxies, including the Local Group (1×10 M☉)
10    
10 2×10 kg Laniakea Supercluster of galaxies, which encompasses the Virgo supercluster
10 2×10 kg Pisces–Cetus Supercluster Complex, a galaxy filament that includes the Laniakea Supercluster.
10 4×10 kg Hercules–Corona Borealis Great Wall, the largest structure in the known universe
10    
10    
10 4.4506×10 kg Mass of the observable universe as estimated by NASA
1.4×10 kg Mass of the observable universe as estimated by the U.S. National Solar Observatory

See also

Notes

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