How many bar in 1 psig?
The answer is 0.0689475728.
We assume you are converting between bar and pound/square inch [gauge].
You can view more details on each measurement unit:
bar or psig
The SI derived unit for pressure is the pascal.
1 pascal is equal to 1.0E-5 bar, or 0.000145037738007 psig.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between bars and pounds/square inch.
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The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, báros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.
Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. By contrast, psia measures pressure relative to a vacuum (such as that in space). At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.
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