What is the normal atmospheric pressure in KPa?

The normal atmospheric pressure is1.013x105pa (Pascal) (approximately equal to the pressure generated by a 760mm high mercury column).

This value is also called standard atmospheric pressure.

Extended content:

Air pressure:

The international system of units of air pressure is Pascal (or Pa for short, the symbol is PA), which generally refers to the hydrostatic pressure exerted by gas on a certain point, which comes from the gravity of air in the atmosphere, that is, the atmospheric pressure per unit area. In general meteorology, people use kilopascals (KPa) or hectopascals (hPa) as units. An instrument for measuring air pressure is called a barometer. Other commonly used units are bar (bar, 1 bar = 100000 Pa) and centimeter mercury column (or centimeter mercury column). The average pressure at sea level is about101.325 kpa (76 cm Hg), which is also called standard atmospheric pressure. In addition, in chemical calculation, the international unit of air pressure is "atm". A standard atmospheric pressure is 1 atmosphere. 1 standard atmospheric pressure is equal to101325pa,1013.25pa and1.01325bar, or 76cm Hg.

The regional difference of atmospheric pressure is one of the direct causes of meteorological changes. Air pressure is an important variable in weather forecast.

On the earth, its source is the gravity of air in the atmosphere, and the normal air pressure is generally 1 kgw/cm2. The atmosphere at high places is thin, where the air gravity is smaller than that at low places, so the air pressure at high places is lower than that at low places. For example, the air pressure in high mountains is lower than that at sea level.

People's use of air pressure refers to the use of compressed gas to transfer energy to do work, and the use of air pressure as power. Simply put, compressed air is the power source of cylinders and pneumatic motors through air pressure.