**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 kilogram-force/square millimetre

attopascal to water column [centimeter]

attopascal to ton/square inch [short]

attopascal to meganewton/square metre

attopascal to pound/square foot

attopascal to foot of mercury [0 °C]

attopascal to kip/square inch

attopascal to ton/square foot [long]

attopascal to pound/square inch [gauge]