# Pa - Pascal Pressure Unit

Pascal is the SI unit for pressure and is derived from other SI units using the following relationship: Pa = (kg.m/s²)/m² = kg/m.s² = N/m². Since 1 pascal is a very low pressure being 1/100 of a millibar, it's use is limited to ultra low gas pressure applications such as measuring the pressure differences in ventilation systems.

The pascal is more commonly used as larger multiples of the unit which are the hectopascal (hPa), kilopascal (kPa) and the megapascal (MPa) unit, these are more practical when measuring mid range pressures.

Unlike other units such as psi, kgf/cm2, mH2O and inHg the pressure value that the pascal unit represents is unchanging no matter where and how it is used. The pascal unit is completely independent of ambient temperature, local gravity and media density.

To determine the equivalent value of a pascal measurement in other units you can multiply it by the choices displayed in the table below.

To convert multiple values from or to pascals please use the online conversion tool for pressure.

Pa Pressure Conversion Factors

 1e-05 bar 0.000145038 psi 0.01 mbar 1 N/m² 1 Pa 0.01 hPa 0.001 kPa 1e-06 MPa 1.01972e-05 kg/cm² 0.101972 mmH2O 4°C (39.2°F) 0.0101972 cmH2O 4°C (39.2°F) 0.000101972 mH2O 4°C (39.2°F) 0.00401463 inH2O 4°C (39.2°F) 0.000334553 ftH2O 4°C (39.2°F) 0.00750062 mmHg 0°C (32°F) 0.000750062 cmHg 0°C (32°F) 0.0002953 inHg 0°C (32°F) 0.00750062 Torr 7.50062 mTorr 9.86923e-06 atm 1.01972e-05 at 10 dyn/cm² 0.0023206 oz/in² 7.50062 µHg 0°C (32°F) 6.4749e-08 tsi (uk, long) 7.25189e-08 tsi (usa, short) 1.04427e-05 tsf (usa, short) 0.0208854 psf 0.0101972 g/cm²

Please note that the conversion factors above are accurate to 6 significant figures.

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