**Full name:** attopascal

**Plural form:** attopascals

**Symbol:** aPa

**Category type:** pressure

**Scale factor:** 1.0E-18

The SI derived unit for pressure is the pascal.

1 pascal is equal to 1.0E+18 attopascal.

Valid units must be of the **pressure** type.

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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.

attopascal to kilopascal

attopascal to ton/square inch [short]

attopascal to kip/square foot

attopascal to kilonewton/square metre

attopascal to microbar

attopascal to micropascal

attopascal to inch of water [4 °C]

attopascal to ounce/square inch

attopascal to inch of water column