## 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.

The gauge pressure in my automobile tires is a little more than twice that value. If you live at a higher altitude, the pressure will be lower since there is less air above weighing down upon you. The pressure also varies by relatively small amounts as high and low pressure systems move past.

*-- Michael Bell*

## FAQs

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.

**
What is the average air pressure at the surface of earth? ›
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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**.

**
What is the average air pressure exerted by earth's atmosphere? ›
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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.

**
What is the pressure of air on the surface of the earth dash? ›
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Thus, the atmospheric pressure on the surface of the earth is approximately **1.01325 pascal**.

**
What is the value of the atmospheric pressure at the earth's surface? ›
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The atmospheric pressure on the earth's surface at sea level is **101.325 Pa**.

**
What is the normal pressure on surface of Earth? ›
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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.

**
How is the air pressure on the Earth? ›
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**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.

**
What is the air pressure answer? ›
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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.

**
What is the pressure through the earth? ›
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The Earth's center has an ultrahigh pressure of **364 GPa** and an ultrahigh temperature of 5,500 °C.

**
What is the normal air pressure in HG? ›
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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.

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

**
What is the surface pressure of Earth in atmospheres? ›
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'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.

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What is the average pressure of Earth's atmosphere in kPa? ›
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It has units of Pascals (Pa). Normal atmospheric pressure at sea level is about 101,000 Pa; namely **101 kPa** (kiloPascals).

**
What is the average pressure of a human on the ground? ›
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Examples

Object | Ground pressure (kPa) | (psi) |
---|

Wheeled ATV | 13.8 | 2 |

Diedrich D-50 – T2 drilling rig | 26.2 | 3.8 |

Human male (130 kg, standing on one foot) | 55 | 8 |

Average human, flat shoes | **17** | **2.5** |

13 more rows
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What range of barometric pressure causes headaches? ›
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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.

**
What is the average atmospheric pressure on Earth is approximated? ›
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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.