kPa - Kilopascal Pressure Unit

The Kilopascal is a x1000 multiple of the Pascal unit which is the SI unit for pressure. 1 Kilopascal equals 1,000 Pascals.

It is not one of the most used pressure units since it lies between the Millibar (Hectopascal) and the Bar, both of which are widely used pressure units and there is a strong tendency due to convert a Kilopascal into one or the other.

The kPa is mostly used for describing sub-atmospheric air pressures and low differential air pressures found in building ventilation systems.

When compared to bar unit there is 100 kPa in 1 bar which happens to be very close to the standard atmospheric pressure at sea level (101.325kPa), therefore a reading in kPa closely represents the same value as the 0 to 100 percentage scale of atmospheric pressure. This makes the comparison of atmospheric pressure with the pressure at different altitudes or the partial pressures of component gases more tangible.

To convert a pressure in kilopascals to another unit, just multiply by the appropriate conversion factor from the list below.

Please try our pressure unit converter to convert any pressure value into kilopascals.

kPa Pressure Conversion Factors

0.01	bar
0.145038	psi
10	mbar
1000	N/m²
1000	Pa
10	hPa
1	kPa
0.001	MPa
0.0101972	kg/cm²
101.972	mmH2O 4°C (39.2°F)
10.1972	cmH2O 4°C (39.2°F)
0.101972	mH2O 4°C (39.2°F)
4.01463	inH2O 4°C (39.2°F)
0.334553	ftH2O 4°C (39.2°F)
7.50062	mmHg 0°C (32°F)
0.750062	cmHg 0°C (32°F)
0.295300	inHg 0°C (32°F)
7.50062	Torr
7500.62	mTorr
0.00986923	atm
0.0101972	at
10000	dyn/cm²
2.32060	oz/in²
7500.62	µHg 0°C (32°F)
0.0000647490	tsi (uk, long)
0.0000725189	tsi (usa, short)
0.0104427	tsf (usa, short)
20.8854	psf
10.1972	g/cm²

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

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Site Last Updated: 09/02/12

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