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)
“Government is either organized benevolence or organized madness; its peculiar magnitude permits no shading.”
—John Updike (b. 1932)