How Much Is Atmospheric Pressure At Sea Level

Deepest point under sea level of sognefjorden norway.

How much is atmospheric pressure at sea level.

Altitude above sea level absolute barometer absolute atmospheric pressure. Atm is a unit of pressure defined as 101 325 pa 1 013 25 hpa. One atmosphere is 1 013 millibar s or 760 millimeters 29 92 inches of mercury. Everest is near 300 mb.

Altitude above sea level absolute atmospheric pressure. Although air contains 20 9 oxygen at all altitudes lower air pressure at high altitude makes it feel like there is a lower percentage of oxygen. The atm unit is roughly equivalent to the mean sea level atmospheric pressure on earth. If you are at sea level each square inch of your surface is subjected to a force of 14 6 pounds.

You can feel an increase of pressure on your eardrums. At a depth of 5 000 meters the pressure will be approximately 500 atmospheres or 500 times greater than the pressure at sea level. Atmospheric pressure also known as barometric pressure after the barometer is the pressure within the atmosphere of earth the standard atmosphere symbol. The charts are based on the ideal gas law equation for pressure versus altitude assuming a constant atmospheric temperature of 32 degrees fahrenheit 0 celsius and 1 atmosphere pressure at sea level.

The pressure increases about one atmosphere for every 10 meters of water depth. 1 013 25 mbar which is equivalent to 760 mm hg 29 9212 inches hg or 14 696 psi. Feet metre inches hg mm hg psia kg cm 2 kpa 5000 1524. Atmospheric pressure is expressed in several different systems of units.

For every 33 feet 10 06 meters you go down the pressure increases by one atmosphere. Altitude above sea level temperature barometric pressure atmospheric pressure feet miles meters f c in. Without correcting for air pressure at sea level the air pressure on the top of mt. Millimetres or inches of mercury pounds per square inch psi dynes per square centimetre millibars mb standard atmospheres or kilopascals standard sea level pressure by definition equals 760 mm 29 92 inches of mercury 14 70 pounds per square inch 1 013 25 10 3 dynes per square centimetre 1 013 25.

Psia kg sq. That s a lot of pressure. An atmosphere atm is a unit of measurement equal to the average air pressure at sea level at a temperature of 15 degrees celsius 59 degrees fahrenheit. For example if air pressure measures 840 mb at an elevation of 1 000 meters above sea level the measurement adjusted for sea level is 1 020 mb.