ATM to Pascals Conversion

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atm
Pascals
101,325Pa

SI base unit of pressure

Atmospheres1atm
Kilopascals101.325kPa
Megapascals0.101325MPa
Bar1.01325bar
Millibar1,013.25mbar
PSI14.6959psi
mmHg (Torr)760mmHg
inHg29.9213inHg
Bar1.01325
PSI14.6959
mmHg760

1 atm = 101,325 Pa

  • This is very close to standard sea-level atmospheric pressure (1 atm = 101,325 Pa).
  • In PSI (used in the US), this equals 14.696 psi.
  • 1 atm is exactly 101,325 Pa by SI definition, so 1 atm is exactly 101,325 Pa.

Next stepUse kilopascals (kPa) when working with tyre pressures or blood pressure, megapascals (MPa) for engineering stress calculations, and mmHg for medical contexts.

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