**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 millipascal

attopascal to foot of mercury [0 °C]

attopascal to attobar

attopascal to meter of air [15 °C]

attopascal to petapascal

attopascal to millihg

attopascal to poundal/square foot

attopascal to gram/square centimetre