The bar is nearly identical to the atmosphere unit. Hg used this has been replaced by the torr). A pressure that causes the Hg column to rise 1 millimeter is called a torr (you may still see the term 1 mm 1 atm = 14.6956 psi = 760 torr.īased on the original Torricelli barometer design, one atmosphere of pressure will force the column of mercury (Hg) in a mercury barometer to a height of 760 millimeters. Normal atmospheric pressure is defined as 1 atmosphere. Normal atmospheric pressure is 14.7 psi, which means that a column of air one square inch in area rising from the Earth's surface up to space weighs 14.7 pounds. Sorted from low to high Pressure or mechanical stress unit, pĬommonly used in the U.S., but not elsewhere. Please enter two values, the third value will be calculated. Important to know: 1 Pa = 1 N/m 2 ≡ 94 dBSPL and 1 bar = 10 5 Paġ kPa = 10 3 Pa = 1000 Pa = 1000 N/m 2 ≡ 154 dBSPLĬonversion of sound units: pascals to dBSPL Standard atmospheric pressure is 101,325 pascals = 1,013.25 hPa = 101.325 kPa You will see the program but the function will not work. This program converts English and American measures to metric units The used browser does not support JavaScript. The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m²). Pressure conversion p = F / A = force divided by area Conversions of pressure or stress units.
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