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

0.00001	bar
0.0001450377	psi
0.01	mbar
1	N/m²
1	Pa
0.01	hPa
0.001	kPa
0.000001	MPa
0.0000101972	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)
0.000295300	inHg 0°C (32°F)
0.00750062	Torr
7.50062	mTorr
0.00000986923	atm
0.0000101972	at
10	dyn/cm²
0.00232060	oz/in²
7.50062	µHg 0°C (32°F)
0.0000000647490	tsi (uk, long)
0.0000000725189	tsi (usa, short)
0.0000104427	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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Site Last Updated: 08/02/12

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