What is the average air pressure at the surface of the Earth? (2024)

FAQs

What is the average air pressure at the surface of the Earth? ›

The standard, or near-average, atmospheric pressure at sea level on the Earth is 1013.25 millibars, or about 14.7 pounds per square inch.

When gravity acts on the air, the air exerts a force upon the earth called pressure. The typical pressure at sea level is 1013.25 millibars or 14.7 pounds per square inch.

The average pressure at mean sea level (MSL) in the International Standard Atmosphere (ISA) is 1,013.25 hPa, or 1 atmosphere (atm), or 29.92 inches of mercury.

Thus, the atmospheric pressure on the surface of the earth is approximately 1.01325 pascal.

The atmospheric pressure on the earth's surface at sea level is 101.325 Pa.

The standard, or near-average, atmospheric pressure at sea level on the Earth is 1013.25 millibars, or about 14.7 pounds per square inch. The gauge pressure in my automobile tires is a little more than twice that value.

The standard pressure at sea-level is 1013.25 in both millibars (mb) and hectopascal (hPa). The number of molecules in the atmosphere decreases with height. The atoms and molecules that make up the various layers of the atmosphere are constantly moving in random directions.

The pressure exerted by air is called the air pressure, which is the thrust exerted by air per unit area. The weight of the air acting on a unit surface area is called the atmospheric pressure.

The Earth's center has an ultrahigh pressure of 364 GPa and an ultrahigh temperature of 5,500 °C.

Normal is 29.9; range ~29.6 - 30.2 inches Hg (752-767 mm Hg)… at SEA LEVEL! Rarely (at sea level) do readings exceed 30.4 inches Hg (773 mm Hg)… except for occasional arctic highs in January.

What is the average air pressure at the top of Mount Everest? ›

The pressure on top of Mount Everest (29,029 ft) averages about 235 mmHg. Convert this pressure to each indicated unit. a.

'Standard' sea-level pressure, by definition, equals 760 mm (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 × 103 dynes per square centimetre, 1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals.

It has units of Pascals (Pa). Normal atmospheric pressure at sea level is about 101,000 Pa; namely 101 kPa (kiloPascals).

It was found that the atmospheric pressure when the patients developed a migraine was within 1003–1007 hPa in the approach of low atmospheric pressure and that the patients developed a migraine when the atmospheric pressure decreased by 6–10 hPa, slightly less than the standard atmospheric pressure.

1-91 The average atmospheric pressure on earth is approximated as a function of altitude by the relation Patm =101.325 (1−0.02256z)5.256, where Patm is the atmospheric pressure in kPa and z is the altitude in km with z=0 at sea level.