hPa is the abbreviated name for hectopascal (100 x 1 pascal) pressure units which are exactly equal to millibar pressure unit (mb or mbar). The hectopascal or millibar is the preferred unit for recording and predicting barometric or atmospheric pressure in European and many other countries weather reports.

Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa), which is equivalent to 1,013.25 millibars, [1] 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. [2]

The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI). It is also used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. The unit, named after Blaise Pascal, is an SI coherent derived unit defined as one newton per square metre (N/m 2). [1]

The hectopascal (hPa) is the SI unit of pressure measurement, equivalent to 100 pascals (Pa). With the term "hectopascal", the prefix "hecto-", meaning hundred, is combined with the unit "pascal".

气压也就是气体的压力，国际单位是帕，常用的还有MPa，1MPa=10^6帕。 常用单位有：巴 (bar)，帕斯卡（Pa），标准大气压 (atm)，毫米汞柱 (托) (mm Hg、Torr），千克力每平方厘米（kgf/cm2）。

2023年12月18日 · The scientific unit of pressure is the Pascal (Pa), named after Blaise Pascal (1623-1662). One pascal equals 0.01 millibar or 0.00001 bar. Meteorology has used the millibar for air pressure since 1929.

Hectopascal (hPa) is a metric (SI) measurement unit of pressure. The hectopascal is equivalent to millibar and commonly used to measure atmospheric pressure.

HPa is a measure of pressure. Get more information and details on the 'hPa' measurement unit, including its symbol, category, and common conversions from hPa to other pressure units.

2024年6月16日 · A hectopascal (hPa) is a unit of pressure that measures the force exerted per unit area. It is defined as one hundred pascals (Pa), the SI unit of pressure. The pascal is named after the French physicist Blaise Pascal, who made significant contributions to the understanding of pressure and hydrodynamics.

Details: Accurate pressure unit conversion from hPa is vital for ensuring compatibility in meteorological applications (where hPa is commonly used for weather reporting), aviation, and industrial systems (using PSI, MPa, or bar).