To help compare different orders of magnitude, the following lists describe various mass levels between 10<sup>−67</sup> kilograms (kg) and 10<sup>52</sup> 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
The table above is based on the kilogram, 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<sup>−3</sup> 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<sup>3</sup> kg is a megagram (10<sup>6</sup> g), not a *kilokilogram.
The tonne (t) is an SI-compatible unit of mass equal to a megagram (Mg), or 10<sup>3</sup> kg. The unit is in common use for masses above about 10<sup>3</sup> kg and is often used with SI prefixes. For example, a gigagram (Gg) or 10<sup>9</sup> g is 10<sup>3</sup> 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 of 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 ().
The least massive things: below 10<sup>−24</sup> 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 = .
{| class="wikitable sortable"
!Factor (kg)
!Value
!Item
|-
||10<sup id="-67">−67</sup>
|1.07 kg
|Graviton, upper bound (6 eV/c<sup>2</sup>)
|-
||10<sup id="-40">−40</sup>
|4.2 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<sup>2</sup>)
|-
|rowspan=2|10<sup id="-36">−36</sup>
|1.8 kg
|1 eV/c<sup>2</sup>, the mass equivalent of one electronvolt
|-
|3.6 kg
|Electron neutrino, upper limit on mass (2 eV/c<sup>2</sup>)
|-
|10<sup id="-33">−33</sup><br/>quectogram (qg) <!-- 10e-33 Kilograms is 10e-30 grams-->
|
|
|-
|10<sup id="-31">−31</sup>
|9.11 kg
|Electron (511 keV/c<sup>2</sup>), the lightest elementary particle with a measured nonzero rest mass
|-
|10<sup id="-30">−30</sup><br/>rontogram (rg) <!-- 10e-30 Kilograms is 10e-27 grams-->
|3.0–5.5 kg
|Up quark (as a current quark) (1.7–3.1 MeV/c<sup>2</sup>)
|-
|10<sup id="-28">−28</sup>
|1.9 kg
|Muon (106 MeV/c<sup>2</sup>)
|-
|rowspan=4|10<sup id="-27">−27</sup><br/>yoctogram (yg) <!-- 10e-27 Kilograms is 10e-24 grams-->
|1.661 kg
|Dalton (Da), a.k.a. unified atomic mass unit (u)
|-
|1.673 kg
|Proton (938.3 MeV/c<sup>2</sup>)
|-
|1.674 kg
|Hydrogen atom, the lightest atom
|-
|1.675 kg
|Neutron (939.6 MeV/c<sup>2</sup>)
|-
|rowspan=3|10<sup id="-26">−26</sup>
|1.2 kg
|Lithium atom (6.941 Da)
|-
|3.0 kg
|Water molecule (18.015 Da)
|-
|8.0 kg
|Titanium atom (47.867 Da)
|-
|rowspan=7|10<sup id="-25">−25</sup>
|1.1 kg
|Copper atom (63.546 Da)
|-
|1.6 kg
|Z boson (91.2 GeV/c<sup>2</sup>)
|-
|2.2 kg
|Higgs boson (125 GeV/c<sup>2</sup>)
|-
|3.1 kg
|Top quark (173 GeV/c<sup>2</sup>), the heaviest known elementary particle
|-
|3.2 kg
|Caffeine molecule (194 Da)
|-
|3.5 kg
|Lead-208 atom
|-
|4.9 kg
|Oganesson-294 atom, the heaviest known nuclide
|}
10<sup>−24</sup> to 10<sup>−18</sup> kg
{| class="wikitable sortable"
|-
!Factor (kg)
!Value
!Item
|-
|10<sup id="-24">−24</sup><br/>zeptogram (zg)
|1.2 kg
|Buckyball molecule (720 Da)
|-
|rowspan=2|10<sup id="-23">−23</sup>
|1.4 kg
|Ubiquitin, a small ubiquitous protein (8.6 kDa)<!-- 8.6e3 daltons × 1.661e−27 kg/dalton = 1.4e−23 kg -->
|-
|5.5 kg
|A typical protein (median size of roughly 300 amino acids ≈ 33 kDa)<!-- 300 amino acids × 110 daltons/amino acid ≈ 3.3e4 daltons. 3.3e4 daltons × 1.661e−27 kg/ dalton = 5.5e−21 kg -->
|-
|10<sup id="-22">−22</sup>
|1.1 kg
|Haemoglobin A molecule in blood (64.5 kDa)<!-- 6.45e4 daltons × 1.661e−27 kg/dalton = 1.1e−22 kg -->
|-
|rowspan=4|10<sup id="-21">−21</sup><br/>attogram (ag)
|1.65 kg
|Double-stranded DNA molecule consisting of 1,578 base pairs (995 kDa)
|-
|4.3 kg
|Prokaryotic ribosome (2.6 MDa)<!-- 2.6e6 daltons × 1.661e−27 kg/dalton = 4.3e−21 kg -->
|-
|7.1 kg
|Eukaryotic ribosome (4.3 MDa)<!-- 4.6e6 daltons × 1.661e−27 kg/ dalton = 7.6e−21 kg -->
|-
|rowspan=2|10<sup id="-20">−20</sup>
|3 kg
|Synaptic vesicle in rats (16.1 ± 3.8 MDa)<!-- 16.1e6 daltons × 1.661e−27 kg/dalton = 2.67e−20 kg and round to 3e−20 kg -->
|-
|6.8 kg
|Tobacco mosaic virus (41 MDa)<!-- 4.08e7 daltons × 1.661e−27 kg/dalton = 6.78e−20 kg -->
|-
|rowspan=2|10<sup id="-19">−19</sup>
|1.1 kg
|Nuclear pore complex in yeast (66 MDa)<!-- 6.6e7 daltons × 1.661e−27 kg/dalton = 1.1e−19 kg -->
|-
|2.5 kg
|Human adenovirus (150 MDa)<!-- 1.5e8 daltons × 1.661e−27 kg/dalton = 2.5e−19 kg -->
|}
10<sup>−18</sup> to 10<sup>−12</sup> kg
{| class="wikitable sortable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=2|10<sup id="-18">−18</sup><br/>femtogram (fg)
|1 kg
|HIV-1 virus
|-
|4.7 kg
|DNA sequence of length 4.6 Mbp,<!-- This mass entry is calculated, not measured, as follows: 4.63e6 base pairs × 616 daltons / polymerized base pair × 1.66e−27 kg/dalton = 4.74e−18 kg. Care has been taken to say this is the mass of a sequence, not the genome itself. --> the weight of the E. coli genome
|-
|rowspan=2|10<sup id="-17">−17</sup>
|~1 kg
|Vaccinia virus, a large virus
|-
|1.1 kg
|Mass equivalent of 1 joule
|-
|10<sup id="-16">−16</sup>
|3 kg
|Prochlorococcus cyanobacteria, the smallest (and possibly most plentiful) photosynthetic organism on Earth
|-
|6 kg
|DNA in a typical diploid human cell (approximate)
|-
|rowspan=2|10<sup id="-14">−14</sup>
|2.2 kg
|Human sperm cell
|-
|6 kg
|Yeast cell (quite variable)
|-
|10<sup id="-13">−13</sup>
|1.5 kg
|Dunaliella salina, a green alga (dry weight)
|}
10<sup>−12</sup> to 10<sup>−6</sup> kg
thumb|[[Scanning electron micrograph showing grains of sand]]
{| class="wikitable sortable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=3|10<sup id="-12">−12</sup><br/>nanogram (ng)
|1 kg
|Average human cell (1 nanogram)
|-
|2–3 kg
|HeLa human cell
|-
|8 kg
|Grain of birch pollen
|-
|10<sup id="-11">−11</sup>
|
|
|-
|rowspan=2|10<sup id="-10">−10</sup>
|2.5 kg
|Grain of maize pollen
|-
|3.5 kg
|Very fine grain of sand (0.063 mm diameter, 350 nanograms)
|-
|rowspan=2|10<sup id="-9">−9</sup><br/>microgram (μg)
|3.6 kg
|Human ovum
|-
|2.4 kg
|US RDA for vitamin B12 for adults
|-
|rowspan=5|10<sup id="-8">−8</sup>
|
|Speculated approximate lower limit of the mass of a primordial black hole
|-
|
|US RDA for vitamin D for adults
|-
|~2 kg
|Uncertainty in the mass of the International Prototype of the Kilogram (IPK) (±~20μg)
|-
|2.2 kg
|Planck mass, can be expressed as the mass of a 2 Planck Length radius black hole
|-
|~7 kg
|One eyelash hair (approximate)
|-
|rowspan=2|10<sup id="-7">−7</sup>
|1.5 kg
|US RDA for iodine for adults
|-
|2–3 kg
|Fruit fly (dry weight)<!-- Citations give ranges of "0.219–0.304 mg" for males and "0.281–0.351 mg" for females. -->
|}
10<sup>−6</sup> to 1 kg
{| class="wikitable sortable"
|-
!Factor (kg)
!Value
!Item
|-
|10<sup id="-6">−6</sup><br/>milligram (mg)
|2.5 kg
|Mosquitoes, common smaller species (about 2.5 milligrams), grain of salt or sand, medicines are typically expressed in milligrams
|-
|rowspan=2|10<sup id="-5">−5</sup><br/>centigram (cg)
|1.1 kg
|Small granule of quartz (2 mm diameter, 11 milligrams)
|-
|2 kg
|Adult housefly (Musca domestica, 21.4 milligrams)
|-
|rowspan=3|10<sup id="-4">−4</sup><br/>decigram (dg)
|0.27–2.0 kg
|Range of amounts of caffeine in one cup of coffee (27–200 milligrams)
|-
|1.5 kg
|A frame of 35mm motion picture film (157 milligrams)
|-
|1 kg
|US dollar bill (1 gram)
|-
|~1 kg
|Two raisins (approximately 1 gram)
|-
|~8 kg
|Coins of one euro (7.5 grams), one US dollar (8.1 grams) and one Canadian loonie (7 grams [pre-2012], 6.27 grams [2012-])
|-
| rowspan="5" |10<sup id="-2">−2</sup><br/>decagram (dag)
|1.2 kg
|Mass of one mole (6.02214 atoms) of carbon-12 (12 grams)
|-
|1.37 kg
|Amount of ethanol defined as one standard drink in the US (13.7 grams)
|-
|2–4 kg
|Adult mouse (Mus musculus, 20–40 grams)
|-
|2.8 kg
|Ounce (avoirdupois) (28.3495 grams)
|-
|rowspan=4|10<sup id="-1">−1</sup><br/>hectogram (hg)
|0.1-0.2 kg
|An orange (100–200 grams)<!-- Source (USDA NDB No. 09200 gives a small orange as 96 grams, a large orange as 184, so we use the range of 100–200 grams. -->
|-
|0.142-0.149 kg
|A baseball used in the major league.
|-
|0.454 kg
|Pound (avoirdupois) (453.6 grams)
|-
|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
|-
|31.5 kg
|Average weight of a CRT television in 2007
|-
|50 kg
|Large dog breed (Great Dane)
|-
|70 kg
|Adult human
|-
|rowspan=7|10<sup id="2">2</sup>
|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 (2,000 pounds - US)
|-
|2700–6000 kg
|Adult elephant
|-
|rowspan=8|10<sup id="4">4</sup>
|1.1 kg
|Hubble Space Telescope (11 tonnes)
|-
|1.2 kg
|Largest elephant on record (12 tonnes)
|-
|1.4 kg
|Big Ben (bell) (14 tonnes)
|-
|2.7 kg
|ENIAC computer, 1946 (30 tonnes)
|-
|4 kg
|Maximum gross mass (truck + load combined) of a semi-trailer truck in the EU (40–44 tonnes)
|-
|5–6 kg
|Tank; Bulldozer (50–60 tonnes)
|-
|6.0 kg
|Largest single-piece meteorite, Hoba West Meteorite (60 tonnes)
|-
|7.3 kg
|Largest dinosaur, Argentinosaurus (73 tonnes)
|-
|rowspan=4|10<sup id="5">5</sup>
|1.74-1.83 kg
|Operational empty weight of a Boeing 747-300
|-
|1.8 kg
|Largest animal ever, a blue whale (180 tonnes)
|-
|4.2 kg
|International Space Station (417 tonnes)
|-
|6 kg
|World's heaviest aircraft: Antonov An-225 (maximum take-off mass: 600 tonnes, payload: 250 tonnes)
|}
10<sup>6</sup> to 10<sup>11</sup> kg
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=4|10<sup id="6">6</sup><br/>gigagram (Gg)
|1 kg
|Trunk of the giant sequoia tree named General Sherman, largest living tree by trunk volume (1,121 tonnes)<!-- _Big Trees_ gives an estimated trunk mass of "2,471,994 pounds": 2471994 pounds / (2.205 pounds/kilo) = 1121 tonnes ~= 1e6 kg since theirs was only a rough estimate -->
|-
|2.0 kg
|Launch mass of the Space Shuttle (2,041 tonnes)
|-
|6 kg
|Largest clonal colony, the quaking aspen named Pando (largest living organism) (6,000 tonnes)
|-
|7.8 kg
|Virginia-class nuclear submarine (submerged weight)
|-
|rowspan=3|10<sup id="7">7</sup>
|1 kg
|Annual production of Darjeeling tea
|-
|5.2 kg
|RMS Titanic when fully loaded (52,000 tonnes)
|-
|9.97 kg
|Heaviest train ever: Australia's BHP Iron Ore, 2001 record (99,700 tonnes)
|-
|rowspan=2|10<sup id="8">8</sup>
|6.6 kg
|Largest ship and largest mobile man-made object, Seawise Giant, when fully loaded (660,000 tonnes)
|-
|7 kg
|Heaviest (non-pyramid) building, Palace of the Parliament in Bucharest, Romania
|-
|rowspan=2|10<sup id="9">9</sup><br/>teragram (Tg)
|4.3 kg
|Amount of matter converted into energy by the Sun each second
|-
|6 kg
|Great Pyramid of Giza
|-
|<div id="1_E_10_kg">10<sup id="10">10</sup></div>
|6 kg
|Amount of concrete in the Three Gorges Dam, the world's largest concrete structure<!-- Value given for mass assumes a density of concrete of 2.3e3 kg/m<sup>3</sup>. 2.72e7 m<sup>3</sup> of concrete × 2.4e3 kg/m<sup>3</sup> = 6.3e10 kg -->
|-
|rowspan=4|10<sup id="11">11</sup>
|~1 kg
|The mass of a primordial black hole with an evaporation time equal to the age of the universe
|-
|2 kg
|Amount of water stored in London storage reservoirs (0.2 km<sup>3</sup>)
|-
|6 kg
|Total mass of the world's human population
|-
|5 kg
|Total biomass of Antarctic krill, one of the most plentiful animal species on the planet in terms of biomass
|}
10<sup>12</sup> to 10<sup>17</sup> kg
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=4|10<sup id="12">12</sup><br/>petagram (Pg)
|0.8–2.1 kg
|Global biomass of fish
|-
|4 kg
|Global annual human food production
|-
|4 kg
|World crude oil production in 2009 (3,843 Mt)
|-
|5.5 kg
|A teaspoon (5 ml) of neutron star material (5,000 million tonnes)<!-- Taken from Neutron star -->
|-
|rowspan=2|10<sup id="13">13</sup>
|1 kg
|Mass of comet 67P/Churyumov–Gerasimenko
|-
|4 kg
|Global annual human carbon dioxide emission
|-
|rowspan=2|10<sup id="14">14</sup>
|1.05 kg
|Global net primary production – the total mass of carbon fixed in organic compounds by photosynthesis each year on Earth
|-
|7.2 kg
|Total carbon stored in Earth's atmosphere
|-
|rowspan=2|10<sup id="15">15</sup><br/>exagram (Eg)
|2.0 kg
|Total carbon stored in the terrestrial biosphere
|-
|3.5 kg
|Total carbon stored in coal deposits worldwide
|-
|rowspan=4|10<sup id="16">16</sup>
|1 kg
|951 Gaspra, the first asteroid ever to be closely approached by a spacecraft (rough estimate)<!-- Note [[951 Gaspra currently lists a mass of 2–3e16kg. This discrepancy should be investigated. -->
|-
|1 kg
|Rough estimate of the total carbon content of all organisms on Earth.
|-
|3 kg
|Rough estimate of everything produced by the human species.
|-
|3.8 kg
|Total carbon stored in the oceans.
|-
|10<sup id="17">17</sup>
|1.6 kg
|Prometheus, a shepherd satellite for the inner edge of Saturn's F Ring
|}
10<sup>18</sup> to 10<sup>23</sup> kg
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=2|10<sup id="18">18</sup><br/>zettagram (Zg)
|5.1 kg
|Earth's atmosphere
|-
|5.6 kg
|Hyperion, a moon of Saturn
|-
|3 kg
|The rings of Saturn
|-
|10<sup id="20">20</sup>
|9.4 kg
|Ceres, dwarf planet within the asteroid belt
|-
|rowspan=4|10<sup id="21">21</sup><br/>yottagram (Yg)
|1.4 kg
|Earth's oceans
|-
|1.5 kg
|Charon, the largest moon of Pluto<!-- The mass is derived from the citation using their result that Charon is "0.1165" times the mass of Pluto and that Charon+Pluto have a mass of 1.457e22 kg: 1.457e22 × 0.1165/(1+0.1165) = 1.520e21 kg ~= 1.5e21 kg after accounting for the uncertainty in the "0.1165" number -->
|-
|2.9–3.7 kg
|The asteroid belt
|-
|4 kg
|Haumea<br />
|-
|rowspan=4|10<sup id="22">22</sup>
|1.3 kg
|Pluto
|-
|2.7 kg
|Earth's crust
|-
|7.3 kg
|Earth's Moon
|-
|rowspan=4|10<sup id="23">23</sup>
|1.3 kg
|Titan, largest moon of Saturn
|-
|1.5 kg
|Ganymede, largest moon of Jupiter
|-
|3.3 kg
|Mercury
|-
|6.4 kg
|Mars
|}
10<sup>24</sup> to 10<sup>29</sup> kg
thumb|[[Jupiter is the most massive planet in the Solar System.]]
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=2|10<sup id="24">24</sup><br/>ronnagram (Rg) <!-- 10e24 Kilograms is 10e27 grams-->
|4.9 kg
|Venus
|-
|6.0 kg
|Earth
|-
|rowspan=2|10<sup id="25">25</sup>
|3 kg
|Oort cloud
|-
|8.7 kg
|Uranus
|-
|rowspan=2|10<sup id="26">26</sup>
|1.0 kg
|Neptune
|-
|5.7 kg
|Saturn
|-
|10<sup id="27">27</sup><br/>quettagram (Qg) <!-- 10e27 Kilograms is 10e30 grams-->
|1.9 kg
|Jupiter
|-
|10<sup id="28">28</sup>
|2–14 kg
|Brown dwarfs (approximate)<!-- Carnegie citation gives a range of roughly 13–75 Jupiter masses => low end is 13 × 1.9e27 = 2.47e28 kg; high end is ~75 × 1.9e27 = ~14e28 kg => range is 2–14e28 kg. -->
|-
|10<sup id="29">29</sup>
|3 kg
|Barnard's Star, a nearby red dwarf<!-- 0.15-0.17 solar masses => mass = 3.0–3.4e29 kg -->
|}
10<sup>30</sup> to 10<sup>35</sup> kg
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=2|10<sup id="30">30</sup>
|2 kg
|The Sun (one solar mass or = 1.989 kg)<!-- Note that the main entry for Sun and the entry for solar mass give slightly different masses in the 4th significant digit as of 2011-10-15. -->
|-
|2.8 kg
|Chandrasekhar limit ()
|-
|10<sup id="31">31</sup>
|4 kg
|Betelgeuse, a red supergiant star ()
|-
|rowspan=2|10<sup id="32">32</sup>
|4–7 kg
|R136a1, the most massive of known stars (230 to 345 )
|-
|6–8 kg
|Hyades star cluster (300 to 400 )
|-
|10<sup id="33">33</sup>
|1.6 kg
|Pleiades star cluster ()
|-
|10<sup id="34">34</sup>
|
|
|-
|rowspan=3|10<sup id="35">35</sup>
|~10<sup id="-20">35</sup> kg
|Typical globular cluster in the Milky Way (overall range: 3 to 4 )
|-
|2 kg
|Low end of mass range for giant molecular clouds (1 to 1 )
|-
|7.3 kg
|Jeans mass of a giant molecular cloud at 100 K and density 30 atoms per cubic centimeter;<br />possible example: Orion molecular cloud complex
|}
10<sup>36</sup> to 10<sup>41</sup> kg
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
| rowspan="4" |10<sup id="36">36</sup>
|1.79 kg
|The entire Carina complex.
|-
|2.4 kg
|The Gould Belt of stars, including the Sun ()
|-
|7–8 kg
|The supermassive black hole at the center of the Milky Way, associated with the radio source Sagittarius A* ()
|-
|8 kg
|Omega centauri, the largest globular cluster in the Milky Way, containing approximately 10 million stars.
|-
|10<sup id="37">37</sup>
|
|
|-
|10<sup id="38">38</sup>
|
|
|-
|10<sup id="39">39</sup>
|
|
|-
|10<sup id="40">40</sup>
|
|
|-
|rowspan="2"|10<sup id="41">41</sup>
| 1.98 kg
|Phoenix A, the largest supermassive black hole, weighing 100 billion solar masses ()
|-
|4 kg
|Visible mass of the Milky Way galaxy
|}
The most massive things: 10<sup>42</sup> kg and greater
{| class="wikitable"
|-
!Factor (kg)
!Value
!Item
|-
|rowspan=2|10<sup id="42">42</sup>
|1.2 kg
|Milky Way galaxy ()
|-
|2–3 kg
|Local Group of galaxies, including the Milky Way ()
|-
|10<sup id="44">44</sup>
|
|
|-
|10<sup id="45">45</sup>
|1–2 kg
|Local or Virgo Supercluster of galaxies, including the Local Group ()
|-
|10<sup id="46">46</sup>
|
|
|-
|10<sup id="47">47</sup>
|2 kg
|Laniakea Supercluster of galaxies, which encompasses the Virgo supercluster
|-
|10<sup id="48">48</sup>
|2 kg
|Pisces–Cetus Supercluster Complex, a galaxy filament that includes the Laniakea Supercluster.
|-
|10<sup id="49">49</sup>
|4 kg
|Hercules–Corona Borealis Great Wall, the largest structure in the known universe
|-
|10<sup id="50">50</sup>
|
|
|-
|10<sup id="51">51</sup>
|
|
|-
|rowspan=2|10<sup id="52">52</sup>
|4.4506 kg
|Mass of the observable universe as estimated by NASA
|-
|1.4 kg
|Mass of the observable universe as estimated by the US National Solar Observatory
|}
See also
- Lists of astronomical objects
Notes
External links
- Mass units conversion calculator
- Mass units conversion calculator JavaScript