How many psia in 1 attopascal?
The answer is 1.4503773800722E-22.

We assume you are converting between **pound/square inch [absolute]** and **attopascal**.

You can view more details on each measurement unit:

psia or
attopascal

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.00014503773800722 psia, or 1.0E+18 attopascal.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between pounds/square inch and attopascals.

Type in your own numbers in the form to convert the units!

1 psia to attopascal = 6.89475728E+21 attopascal

2 psia to attopascal = 1.378951456E+22 attopascal

3 psia to attopascal = 2.068427184E+22 attopascal

4 psia to attopascal = 2.757902912E+22 attopascal

5 psia to attopascal = 3.44737864E+22 attopascal

6 psia to attopascal = 4.136854368E+22 attopascal

7 psia to attopascal = 4.826330096E+22 attopascal

8 psia to attopascal = 5.515805824E+22 attopascal

9 psia to attopascal = 6.205281552E+22 attopascal

10 psia to attopascal = 6.89475728E+22 attopascal

You can do the reverse unit conversion from attopascal to psia, or enter any two units below:

psia to millihg

psia to kilopond/square centimeter

psia to picopascal

psia to foot water

psia to meganewton/square meter

psia to barye

psia to micrometer of mercury

psia to inch of air

psia to megapascal

psia to centimeter of mercury

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.

The SI prefix "atto" represents a factor of
10^{-18}, or in exponential notation, 1E-18.

So 1 attopascal = 10^{-18} 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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