This is a tabulated listing of the orders of magnitude in relation to pressure expressed in pascals.
Magnitude | Pressure | lbf/in2 or dB | Item |
---|---|---|---|
10−17 Pa |
10 aPa | Pressure in outer space in intergalactic voids (the lowest pressure ever measured) | |
10−15 Pa |
1-10 fPa | Pressure in outer space between stars in the Milky Way | |
10−12 Pa |
1 pPa | Lowest pressure obtained in laboratory conditions | |
10−11 Pa |
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40 pPa | Atmosphere of the Moon at lunar day, very approximately (4×10−11 Pa) | ||
10−10 Pa |
100 pPa | Atmosphere of Mercury, very approximately (1×10−10 Pa) | |
800 pPa | Atmosphere of the Moon at lunar night, very approximately (80×10−11 Pa) | ||
10−9 Pa |
< 1 nPa | Vacuum expected in the beam pipe of the Large Hadron Collider's Atlas experiment | |
~1 nPa | Approximate solar wind pressure at Earth's distance from the Sun (variable) | ||
10−8 Pa |
10 nPa | Pressure inside a vacuum chamber for laser cooling of atoms (magneto-optical trap) | |
10-700 nPa | Atmospheric pressure in low Earth orbit | ||
10−7 Pa |
100 nPa | Upper limit of ultra high vacuum | |
10−6 Pa |
1 µPa | Reference pressure for sound in water | |
1 µPa | Pressure inside a vacuum tube (very approximate) | ||
10−5 Pa |
10 µPa | Radiation pressure of sunlight on a perfectly reflecting surface at the distance of the Earth. | |
20 µPa | 0 dB | Reference pressure for sound in air | |
±20 µPa | 0 dB | Threshold of human hearing | |
10−4 Pa |
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10−3 Pa |
1-100 mPa | Vacuum pressures used for molecular distillation | |
10−2 Pa |
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10−1 Pa |
100 mPa | Upper limit of high vacuum | |
~200 mPa | Atmospheric pressure on Pluto (1988 figure; very roughly) | ||
1 Pa | 1 Pa | Pressure exerted by a US dollar bill resting flat on a surface | |
1 Pa | Upper limit of molecular distillation, where the mean free path of molecules is larger than the equipment | ||
10 Pa | 10 Pa | Pressure increase per millimeter of a water column at Earth mean sea level | |
10 Pa | Pressure due to direct impact of a gentle breeze (~9 mph) | ||
86 Pa | Pressure from the weight of a U.S. penny lying flat | ||
102 Pa |
±100 Pa | ~130 dB | Threshold of pain pressure level for sound. Prolonged exposure may lead to hearing loss. |
100 Pa | Pressure due to direct impact of a strong breeze (~28 mph) | ||
120 Pa | Pressure from the weight of a U.S. quarter lying flat | ||
133 Pa | 1 torr ≈ 1 mmHg. | ||
±300 Pa | ±0.043 psi | Lung air pressure difference moving the normal breaths of a person (only 0.3% of standard atmospheric pressure) | |
400 to 900 Pa | 0.06 to 0.13 psi | Atmospheric pressure on Mars, < 1% of atmospheric sea-level pressure on Earth | |
610 Pa | 0.089 psi | Partial vapour pressure at the triple point of water (611.73 Pa) | |
103 Pa |
+1-10 kPa | Typical explosion peak overpressure needed to break glass windows (approximate) | |
2 kPa | Pressure of popping popcorn (very approximate) | ||
2.6 kPa | 0.38 psi | Pressure to make water boil at room temperature (22 °C) (20 mmHg) | |
5 kPa | 0.8 psi | Blood pressure fluctuation (40 mmHg) between heartbeats for a typical healthy adult | |
6.9 kPa | 1 psi | 1 pound-force per square inch | |
+9.8 kPa | +1.4 psi | Lung pressure that a typical person can exert (74 mmHg) | |
104 Pa |
10 kPa | 1.5 psi | Pressure increase per meter of a water column |
10 kPa | 1.5 psi | Decrease in air pressure when going from Earth sea level to 1000 m elevation | |
+13 kPa | +1.9 psi | High air pressure for human lung, measured for trumpet player making staccato high notes | |
< +16 kPa | +2.3 psi | Systolic blood pressure in a healthy adult while at rest (< 120 mmHg) (gauge pressure) | |
+19.3 kPa | +2.8 psi | High end of lung pressure, exertable without injury by a healthy person for brief times | |
+34 kPa | +5 psi | Level of long-duration blast overpressure (from a large-scale explosion) that would cause most buildings to collapse | |
+70 kPa | +10 psi | Pressure for paint exiting an HVLP (low-pressure) paint spray gun | |
70 kPa | Pressure inside an incandescent light bulb | ||
80 kPa | 12 psi | Pressure inside vacuum cleaner at sea level on Earth (80% of standard atmospheric pressure) | |
87 kPa | 13 psi | Record low atmospheric pressure for typhoon/hurricane (Typhoon Tip in 1979) (only 86% of standard atmospheric pressure) | |
105 Pa |
100 kPa | 15 psi | 1 bar (14.5 psi), approximately equal to the weight of one kilogram (1 kilopond) acting on one square centimeter |
101 kPa | 15 psi | Standard atmospheric pressure for Earth sea level (14.7 psi) | |
150 to > 550 kPa | 25 to > 80 psi | Impact pressure of a fist punch (approximate) | |
+180 to +250 kPa | +26 to +36 psi | Air pressure in an automobile tire relative to atmosphere (gauge pressure) | |
+200 to +1,500 kPa | +30 to +220 psi | Air pressure in a bicycle tire relative to atmosphere (gauge pressure) | |
300 kPa | 50 psi | Water pressure of a garden hose | |
300 to 700 kPa | 50 to 100 psi | Typical water pressure of a municipal water supply in the US | |
400 to 600 kPa | 60 to 90 psi | Air pressure in a champagne bottle | |
520 kPa | 75 psi | Partial vapour pressure at the triple point of carbon dioxide | |
+690 to +830 kPa | +100 to +120 psi | Air pressure in a heavy truck/bus tire relative to atmosphere (gauge pressure) | |
800 kPa | Vapor pressure of water in a kernel of popcorn when the kernel ruptures | ||
106 Pa |
0.8 to 2 MPa | 120 to 290 psi | Pressure used in boilers of steam locomotives |
1.1 MPa | 162 psi | Pressure of an average human bite | |
2.8 to 8.3 MPa | 400 to 1200 psi | Pressure of carbon dioxide propellant in a paintball gun | |
5 MPa | 700 psi | Water pressure of the output of a coin-operated car wash spray nozzle | |
5 MPa | 700 psi | Military submarine max. rated pressure (est.) of Seawolf class nuclear sub, at depth of 500 m | |
6.9-27 MPa | 1000-4000 psi | Water spray pressure used by pressure washers | |
9.2 MPa | 1300 psi | Atmosphere of Venus (92 bar) | |
107 Pa |
> 10 MPa | > 1500 psi | Pressure exerted by a 45 kg woman wearing stiletto heels when a heel hits the floor |
15 MPa | 2200 psi | Power stroke maximum pressure in diesel truck engine when burning fuel | |
21 MPa | 3000 psi | Pressure of a typical aluminium scuba tank of pressurized air (210 bar) | |
20 MPa | 2900 psi | Typical pressure used for hydrogenolysis reactions | |
28 MPa | Overpressure caused by the bomb explosion during the Oklahoma City bombing | ||
69 MPa | 10000 psi | Water pressure withstood by the DSV Shinkai 6500 in visiting ocean depths of > 6500 meters | |
70 to 280 MPa | 10000 to 40000 psi | Maximum chamber pressure during a pistol firing | |
108 Pa |
110 MPa | 16000 psi | Pressure at bottom of Mariana Trench, about 11 km below ocean surface (1100 bar) |
100 to 300 MPa | 15000 to 44000 psi | Pressure inside reactor for the synthesis of high-pressure polyethylene (HPPE) | |
400 MPa | 58000 psi | Chamber pressure of late 1910s .50 Browning Machine Gun discharge | |
240 to 620 MPa | 35000 to 90000 psi | Water pressure used in a water jet cutter | |
109 Pa |
1 GPa | Extremely high-pressure chemical reactors (10 kbar) | |
1.5 GPa | Diamond melts using a 3 kJ laser without turning into graphite first. | ||
1.515556 GPa | 219812.8 psi | tensile strength of Inconel 625 according to Aircraft metal strength tables and the Mil-Hdbk-5 | |
1010 Pa |
10 GPa | Pressure at which octaoxygen forms at room temperature (100,000 bar) | |
18 GPa | Pressure needed for the first commercially successful synthesis of diamond | ||
24 to 110 GPa | Stability range of enstatite in its perovskite-structured polymorph, possibly the most common mineral inside the Earth | ||
40 GPa | Quantum mechanical electron degeneracy pressure in a block of copper | ||
48 GPa | Detonation pressure of pure CL-20, The most powerful high explosive in mass production. | ||
69 GPa | 10,000,000 psi | highest water jet pressure made in research lab | |
96 GPa | Pressure at which metallic oxygen forms (960,000 bar) | ||
1011 Pa |
100 GPa | Theoretical tensile strength of a carbon nanotube (CNT) | |
130 GPa | Intrinsic strength of monolayer graphene | ||
> 300 GPa | Pressure attainable with a diamond anvil cell | ||
360 GPa | Pressure inside the core of the Earth (3.64 million bar) | ||
1012 Pa |
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1013 Pa |
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1014 Pa |
540 TPa | Pressure inside an Ivy Mike-like nuclear bomb detonation (5.3 billion bar) | |
1015 Pa |
6.5 PPa | Pressure inside a W80 nuclear warhead detonation (64 billion bar) | |
1016 Pa |
25 PPa | Pressure inside the core of the Sun (250 billion bar) | |
57 PPa | Pressure inside a uranium nucleus (8 MeV in a sphere of radius 175 pm) | ||
1034 Pa | 0.3 to 16×1034 Pa | Pressure range inside a neutron star | |
10113 Pa |
4.6×10113 Pa | 6.7×10109 psi | The Planck pressure (4.63x10108 bar), not reached except shortly after the Big Bang or in a black hole |
Famous quotes containing the words orders and/or magnitude:
“God is a foreman with certain definite views
Who orders life in shifts of work and leisure.”
—Seamus Heaney (b. 1939)
“Constancy has nothing virtuous in itself, independently of the pleasure it confers, and partakes of the temporizing spirit of vice in proportion as it endures tamely moral defects of magnitude in the object of its indiscreet choice.”
—Percy Bysshe Shelley (17921822)