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How many pound/square inch [absolute] 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:

pound/square inch [absolute] or
attopascal

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

1 pascal is equal to 0.00014503773800722 pound/square inch [absolute], 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 pound/square inch [absolute] to attopascal = 6.89475728E+21 attopascal

2 pound/square inch [absolute] to attopascal = 1.378951456E+22 attopascal

3 pound/square inch [absolute] to attopascal = 2.068427184E+22 attopascal

4 pound/square inch [absolute] to attopascal = 2.757902912E+22 attopascal

5 pound/square inch [absolute] to attopascal = 3.44737864E+22 attopascal

6 pound/square inch [absolute] to attopascal = 4.136854368E+22 attopascal

7 pound/square inch [absolute] to attopascal = 4.826330096E+22 attopascal

8 pound/square inch [absolute] to attopascal = 5.515805824E+22 attopascal

9 pound/square inch [absolute] to attopascal = 6.205281552E+22 attopascal

10 pound/square inch [absolute] to attopascal = 6.89475728E+22 attopascal

You can do the reverse unit conversion from attopascal to pound/square inch [absolute], or enter any two units below:

pound/square inch [absolute] to foot of head

pound/square inch [absolute] to barad

pound/square inch [absolute] to hectobar

pound/square inch [absolute] to centimeter mercury

pound/square inch [absolute] to microbar

pound/square inch [absolute] to attobar

pound/square inch [absolute] to megabar

pound/square inch [absolute] to millihg

pound/square inch [absolute] to pascal

pound/square inch [absolute] to yottapascal

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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