## ››Convert pound/square inch [absolute] to gigapascal

 psia gigapascal

How many psia in 1 gigapascal? The answer is 145037.73800722.
We assume you are converting between pound/square inch [absolute] and gigapascal.
You can view more details on each measurement unit:
psia or gigapascal
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00014503773800722 psia, or 1.0E-9 gigapascal.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between pounds/square inch and gigapascals.
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You can do the reverse unit conversion from gigapascal to psia, or enter any two units below:

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## ››Definition: Pound/square inch

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.

## ››Definition: Gigapascal

The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.

So 1 gigapascal = 109 pascals.

The definition of a pascal is as follows:

The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher.

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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, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!