Pressure Conversion Table

Pressure Unit Conversion Table & Chart

Use this pressure conversion table chart to convert pressure units. To use the chart, find the unit of pressure you want to convert in the left hand column and multiply it by the value in the corresponding pressure unit column.

The handy pressure converter table is used for converting pressure units fast and easily in the lab or in the classrom. All you need is a calculator. 

This chart is available in downloadable format for printing and republishing with a reference back to this page.

	kPa	bar	atm	Torr	psi	mmHg
kPa	1	0.01	0.00987	7.5	0.146	7.5
cm3	100	1	0.987	750.06	14.504	750.06
m3	101.325	1.013	1	760	14.696	760
in3	0.133	0.00133	0.00132	1	0.0193	1
ft3	6.895	0.069	0.068	51.715	1	51.715
yd3	0.133	0.0013	0.0013	1	0.0193	1

Pressure Conversion Multiplication Chart

This expanded pressure conversion chart lists all conversion formulas for pressure units. This chart is available to download in PDF format.

Convert From	To	Multiply by	Convert From	To	Multiply by
bar	psi	14.5	micron (μ)	psi	0.00019337
bar	in. of H20	401.47	micron (μ)	in. of H2O	0.0053525
bar	in. of Hg	29.53	micron (μ)	in. of Hg	0.0003937
bar	kPa	100	micron (μ)	kPa	0.0013332
bar	mbar	1000	micron (μ)	mbar	0.013332
bar	cm of H20	1019.73	micron (μ)	cm of H2O	0.013595
bar	mm of Hg	750.06	micron (μ)	mm of Hg	0.001
in. of H20	psi	0.036127	mm of Hg	psi	0.019337
in. of H20	in. of Hg	0.073554	mm of Hg	in. of H2O	0.53525
in. of H20	kPa	0.2491	mm of Hg	in. of Hg	0.03937
in. of H20	mbar	2.491	mm of Hg	kPa	0.13332
in. of H20	cm of H20	2.54	mm of Hg	mbar	1.3332
in. of H20	mm of Hg	1.8683	mm of Hg	cm of H2O	1.3595
in. of Hg	psi	0.4912	psi	in. of H2O	27.68
in. of Hg	in. of H20	13.596	psi	in. of Hg	2.036
in. of Hg	kPa	3.3864	psi	kPa	6.8947
in. of Hg	mbar	33.864	psi	mbar	68.947
in. of Hg	cm of H20	34.532	psi	cm of H2O	70.308
in. of Hg	mm of Hg	25.4	psi	mm of Hg	51.715
kPa	psi	0.14504	torr	psi	0.019337
kPa	in. of H20	4.0147	torr	in. of H2O	0.53525
kPa	in. of Hg	0.2953	torr	in. of Hg	0.03937
kPa	mbar	10	torr	kPa	0.13332
kPa	cm of H20	10.1973	torr	mbar	1.3332
kPa	mm of Hg	7.5006	torr	cm of H2O	1.3595
mbar	psi	0.0145	torr	mm of Hg	1
mbar	in. of H20	0.40147
mbar	in. of Hg	0.02953
mbar	kPa	0.1
mbar	cm of H20	1.01973
mbar	mm of Hg	0.75006