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ORDERS OF MAGNITUDE (PRESSURE)


PressureItem
1 fPa Interstellar space pressure (approximate)
1 nPa Atmospheric pressure on the Moon (approximate)
1 µPa Pressure inside a vacuum tube. (approximate, varies)
20 µPa Threshold of human hearing. The smallest RMS pressure fluctuation that the human ear can hear in a noiseless environment, at frequencies between 1 and 5 kHz.
100 µPa Near earth outer space pressure. (approximate)
0.5 Pa Atmospheric pressure on Pluto (1988 figure; very roughly).
1 Pa Pressure exerted by a house fly standing on a postage stamp in vacuum (approximate).
10 Pa Pressure increase per millimeter of a water column.1
10 Pa Pressure inside an incandescent light bulb (approximate).
100 Pa Threshold of pain. Sounds above this amplitude are unbearable and can cause ear pain.Prolonged exposure may lead to hearing loss.
1 kPa Atmospheric pressure on Mars; 1 % of atmospheric sea-level pressure on Earth.
10 kPa Pressure increase per meter of a water column1, or the drop in air pressure when going from earth sea level to 1000 m elevation.
'101.325 kPa' 'Standard atmospheric pressure for earth sea level'
180 to 250 kPa Pressure in an automobile tire.
0.8 to 2 MPa Pressure used in boilers of steam locomotives.
9 MPa Atmospheric pressure on Venus
10 MPa Pressure washers force out water at this pressure.
12 MPa Pressure exerted by a 60kg woman wearing stilettos.
20 MPa Pressure of a typical aluminium scuba tank.
100 MPa Pressure at bottom of Mariana Trench, about 10 km below ocean surface.
400 MPa Chamber pressure of .50 BMG weapon discharge
10 GPa Pressure at which diamond and tetraoxygen forms.
100 GPa Theoretical tensile strength of a carbon nanotube (CNT).
380 GPa Pressure inside the core of the Earth
530 TPa Pressure inside an ''Ivy Mike''-like nuclear bomb
6.4 PPa Pressure inside a W80 warhead detonation
35 PPa Pressure inside the core of the Sun
. . .
4.63 × 10113 Pa The Planck pressure

1 At earth mean sea level.

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