Convert pound/square inch [gauge] to atmosphere [standard]


lb/in2
atmosphere

The above form works if you are measuring differential pressure, such as the difference in psi between two points.

If you are measuring relative to vacuum and want to resolve the pressure relative to the atmosphere, then you should use the form below.

Note that psig can measure differential pressure in some applications and absolute pressure in others, so you need to know which one fits your calculation.

lb/in2 (relative to atmosphere)
atmosphere (relative to vacuum)



Did you mean to convert pound/square inch
pound/square inch [gauge]
pound/square inch [absolute]
 to atmosphere [standard]
atmosphere [technical]

More information from the unit converter

How many lb/in2 in 1 atmosphere? The answer is 14.695948803581. We assume you are converting between pound/square inch [gauge] and atmosphere [standard]. You can view more details on each measurement unit: lb/in2 or atmosphere The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00014503773800722 lb/in2, or 9.8692326671601E-6 atmosphere. 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!



Quick conversion chart of lb/in2 to atmosphere

1 lb/in2 to atmosphere = 0.06805 atmosphere

10 lb/in2 to atmosphere = 0.68046 atmosphere

20 lb/in2 to atmosphere = 1.36092 atmosphere

30 lb/in2 to atmosphere = 2.04138 atmosphere

40 lb/in2 to atmosphere = 2.72184 atmosphere

50 lb/in2 to atmosphere = 3.4023 atmosphere

100 lb/in2 to atmosphere = 6.8046 atmosphere

200 lb/in2 to atmosphere = 13.60919 atmosphere


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You can do the reverse unit conversion from atmosphere to lb/in2, or enter any two units below:

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Common pressure conversions


Definition: Pound/square inch

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.


Definition: Atmosphere

The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). It is sometimes used as a reference pressure or standard pressure. It is approximately equal to Earth's atmospheric pressure at sea level.


Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!