How many psig in 1 atmosphere [technical]?
The answer is 14.2233433343.
We assume you are converting between pound/square inch [gauge] and atmosphere [technical].
You can view more details on each measurement unit:
psig or atmosphere [technical]
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.000145037738007 psig, or 1.01971621298E-5 atmosphere [technical].
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between pounds/square inch and atmospheres.
Type in your own numbers in the form to convert the units!
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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