| Factor (kg) |
Value |
Item |
| 10−36 |
3.6×10−36 kg |
Electron neutrino, upper limit on mass (2 eV/c²) |
| 10−35 |
|
|
| 10−34 |
|
|
| 10−33 |
|
|
| 10−32 |
|
|
| 10−31 |
9.1×10−31 kg |
Electron (511 keV/c²), the lightest elementary particle with a measured nonzero rest mass. |
| 10−30 |
|
|
| 10−29 |
|
|
| 10−28 |
1.9×10−28 kg |
Muon (106 MeV/c²) |
10−27
yoctogram (yg) |
1.661×10−27 kg |
Atomic mass unit (amu) or dalton (Da) |
| 1.673×10−27 kg |
Proton (938.3 MeV/c²) |
| 1.674×10−27 kg |
Hydrogen atom, the lightest atom |
| 1.675×10−27 kg |
Neutron (939.6 MeV/c²) |
| 10−26 |
1.15×10−26 kg |
Lithium atom (6.941 amu) |
| 2.99×10−26 kg |
Water molecule (18.015 amu) |
| 7.95×10−26 kg |
Titanium atom (47.867 amu) |
| 10−25 |
1.79×10−25 kg |
Silver atom (107.8682 amu) |
| 1.6×10−25 kg |
Z boson (91.2 GeV/c²) |
| 3.1×10−25 kg |
Top quark (173 GeV/c²), the heaviest known elementary particle |
| 3.2×10−25 kg |
Caffeine molecule (194 amu) |
| 3.45×10−25 kg |
Lead-208 atom, the heaviest stable isotope known |
10−24
zeptogram (zg) |
|
|
| 10−23 |
|
|
| 10−22 |
1.1×10−22 kg |
Haemoglobin A molecule |
10−21
attogram (ag) |
|
|
| 10−20 |
10−20 kg |
A small virus |
| 10−19 |
|
|
10−18
femtogram (fg) |
|
|
| 10−17 |
1.1×10−17 kg |
Mass equivalent of one joule |
| 4.6×10−17 kg |
Mass equivalent of a calorie |
| 10−16 |
7×10−16 kg |
Escherichia coli bacterium |
10−15
picogram (pg) |
|
|
| 10−14 |
|
|
| 10−13 |
|
|
10−12
nanogram (ng) |
10−12 kg |
Average cell of the human body (1 nanogram) |
| 10−11 |
1.5×10−11 kg |
Lethal dose of botulin toxin (the deadliest substance known) -about 200 pg/kg of body mass, so a 15 ng dose would kill almost anybody. |
| 10−10 |
|
|
10−9
microgram (µg) |
2×10−9 kg |
Uncertainty in the mass of the prototype kilogram (2 micrograms) |
| 3×10−9 kg |
Small grain of sand (0.063 mm diameter, 3 micrograms) |
| 10−8 |
2.2×10−8 kg |
Planck mass |
| 10−7 |
10−7 kg |
"Hit" of LSD (100 micrograms) |
| 2×10−7 kg |
Lethal dose of ricin (200 micrograms) |
10−6
milligram (mg) |
1–2×10−6 kg |
Typical mass of a mosquito (1–2 milligrams) |
| 10−5 |
1–3×10−5 kg |
Dose of DXM per labeling on most products (10-30 milligrams) |
| 9×10−5 kg |
Large grain of sand (2 mm diameter, 90 milligrams) |
| 10−4 |
1.5×10−4 kg |
Typical amount of caffeine in one cup of coffee (150 milligrams) |
| 2×10−4 kg |
Metric carat (200 milligrams) |
| 1–2×10−4 kg |
Maximum legal caffeine pill in United States (0.1–0.2 grams) |
| 3×10−4 kg |
Hallucinogenic dose for mescaline (0.3 grams) |
10−3
gram (g) |
10−3 kg |
One millilitre of water (1 gram) |
| 8×10−3 kg |
Typical coins: euro (7.5 grams) and U.S. dollar (8.1 grams) |
10−2
decagram (dag) |
1×10−2 kg |
Lethal dose of caffeine for an adult (10 grams) |
| 1.2–4×10−2 kg |
Adult mouse (Mus musculus, 12–40 grams) |
| 2.4×10−2 kg |
Amount of ethanol in one drink (24 grams) |
| 2.8×10−2 kg |
Ounce (avoirdupois) (28.35 grams) |
10−1
hectogram (Hg) |
0.15 kg |
Human kidney (150 grams) |
| 0.454 kg |
Pound (avoirdupois) (454 grams) |
1 kg
kilogram (kg) |
1 kg |
One litre of water, approx. |
| 3 kg |
Newborn human baby |
| 4.0 kg |
Women's shotput |
| 5–7 kg |
Housecat |
| 5–9 kg |
Pizote |
| 7.3 kg |
Men's shotput |
| 101 |
10–30 kg |
A CRT computer monitor or television set |
| 15–20 kg |
Medium-sized dog |
| 70 kg |
Adult human; large dog |
| 102 |
100 kg |
Quintal (mainly U.S. - other countries have different definitions) |
| 180–250 kg |
Mature lion, female (180 kg) and male (250 kg) |
| 700 kg |
Dairy cow |
| 907 kg |
Short ton (U.S.) |
103
megagram (Mg) |
1000 kg |
Metric ton/tonne; one cubic metre of water |
| 1016 kg |
Ton (British) / 1 long ton (U.S.) |
| 800–1600 kg |
Typical passenger automobiles |
| 3000–7000 kg |
Adult elephant |
| 104 |
1.1×104 kg |
Hubble Space Telescope (11 tonnes) |
| 1.2×104 kg |
Largest elephant on record (12 tonnes) |
| 1.4×104 kg |
Bell of Big Ben (14 tonnes) |
| 6.0×104 kg |
Largest Meteorite, Hoba West Meteorite (60 tonnes) |
| 8–10×104 kg |
Largest known dinosaur, the Argentinosaurus (80–100 tonnes) |
| 105 |
105 kg |
Largest animal, the blue whale (100 tonnes) |
| 1.87×105 kg |
International Space Station (187 tonnes) |
| 6×105 kg |
Antonov An-225 (the world's heaviest aircraft) maximum take-off mass (600 tonnes); payload: 250 tonnes |
106
gigagram (Gg) |
1.5×106 kg |
Individual gate of the Thames Barrier |
| 2.041×106 kg |
Launch mass of the Space Shuttle (2041 tonnes) |
| 107 |
1.1×107 kg |
Annual production of Darjeeling tea (11,000 tonnes) |
| 2.6×107 kg |
RMS Titanic (26,000 tonnes) |
| 9.97×107 kg |
Heaviest train ever (99,700 tonnes): Australia's BHP Iron Ore, 2001 record |
| 108 |
6.5×108 kg |
Largest ship, Knock Nevis, when fully loaded (650,000 tonnes) |
109
teragram (Tg) |
4.3×109 kg |
Amount of matter converted into energy by the Sun each second |
| 6×109 kg |
Great Pyramid of Giza |
| 1010 |
6×1010 kg |
Amount of concrete in the Three Gorges Dam, the world's largest concrete structure |
| 1011 |
2×1011 kg |
Amount of water stored in London storage reservoirs (0.2 km³) |
| 3×1011 kg |
Total mass of the human world population |
| 1–8×1011 kg |
Total biomass of Antarctic krill, Euphausia superba, thought to be the most plentiful creature on the planet |
1012
petagram (Pg) |
3.91×1012 kg |
World oil production in 2001 |
| 1013 |
|
|
| 1014 |
2–3×1014 kg |
Amount of rock that exploded in the Mount Tambora volcanic eruption in 1815 |
1015
exagram (Eg) |
1×1015 kg |
Estimated total world coal reserves economically accessible using current mining technology |
| 1016 |
|
|
| 1017 |
|
|
1018
zettagram (Zg) |
5×1018 kg |
Earth's atmosphere |
| 1019 |
|
|
| 1020 |
8.7×1020 kg |
Ceres, the largest asteroid in the main Asteroid Belt |
1021
yottagram (Yg) |
1.35×1021 kg |
Earth's oceans |
| 1.6×1021 kg |
Charon, the moon of Pluto |
| 2.3×1021 kg |
Total mass of the Asteroid Belt |
| 1022 |
1.2×1022 kg |
Pluto |
| 7.35×1022 kg |
Earth's Moon |
| 1023 |
1.2×1023 kg |
Titan, largest moon of Saturn |
| 1.5×1023 kg |
Triton, largest moon of Neptune |
| 1.5×1023 kg |
Ganymede, largest moon of Jupiter |
| 3.2×1023 kg |
Mercury |
| 6.4×1023 kg |
Mars |
| 1024 |
4.9×1024 kg |
Venus |
| 6.0×1024 kg |
The Earth |
| 1025 |
3.0×1025 kg |
Lowest estimate of the mass of the Oort cloud |
| 8.7×1025 kg |
Uranus |
| 1026 |
1.0×1026 kg |
Neptune |
| 5.7×1026 kg |
Saturn |
| 6.0×1026 kg |
Highest estimate of the mass of the Oort cloud |
| 1027 |
1.9×1027 kg |
Jupiter |
| 1028 |
1–17×1028 kg |
Brown dwarf stars |
| 1029 |
|
|
| 1030 |
2×1030 kg |
Sun; one solar mass |
| 2.9×1030 kg |
Chandrasekhar limit (1.44 solar masses) |
| 1031 |
4×1031 kg |
Betelgeuse, a red supergiant star |
| 1032 |
|
|
| 1033 |
|
|
| 1034 |
|
|
| 1035 |
|
|
| 1036 |
2×1036 kg |
Sagittarius A*, the supermassive black hole at the center of our Galaxy |
| 1037 |
|
|
| 1038 |
|
Typical mass of a globular cluster |
| 1039 |
|
|
| 1040 |
|
|
| 1041 |
3.6×1041 kg |
Visible mass of the Milky Way galaxy |
| 1042 |
2×1042 kg |
Total mass of the Milky Way galaxy |
| 1043 |
|
|
| 1044 |
|
|
| 1045 |
|
|
| 1046 |
2×1046 kg |
Virgo Supercluster |
| 1047 |
|
|
| 1048 |
|
|
| 1049 |
|
|
| 1050 |
|
|
| 1051 |
|
|
| 1052 |
2×1052 kg |
Mass of a critical density Universe |
| 3×1052 kg |
Mass of the observable universe |