How many millibar in 1 psia? The answer is 68.9475728. We assume you are converting between millibar and pound/square inch [absolute]. You can view more details on each measurement unit: millibar or psia The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.01 millibar, or 0.00014503773800722 psia. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millibars and pounds/square inch. Type in your own numbers in the form to convert the units!
1 millibar to psia = 0.0145 psia
10 millibar to psia = 0.14504 psia
20 millibar to psia = 0.29008 psia
30 millibar to psia = 0.43511 psia
40 millibar to psia = 0.58015 psia
50 millibar to psia = 0.72519 psia
100 millibar to psia = 1.45038 psia
200 millibar to psia = 2.90075 psia
You can do the reverse unit conversion from psia to millibar, or enter any two units below:
A millibar (mb) is 1/1000th of a bar, a unit for measurement of pressure. It is not an SI unit of measure, however it is one of the units used in meteorology when describing atmospheric pressure. The SI unit is the pascal (Pa), with 1 millibar = 100 pascals (a hectopascal)
Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around 14.7 psi, this will be added to any pressure reading made in air at sea level.
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