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Generating Suction Production

Conversion Tables

International vacuum/pressure conversion table
Unit bar N/cm2 kPa atm, kp/cm2 m H2O torr, mm Hg in Hg psi
bar 1 10 100 1.0197 1.0197 750.06 29.54 14.5
N/cm2 0.1 1 10 0.1019 0.1019 75.006 2.954 1.45
kPa 0.01 0.1 1 0.0102 0.0102 7.5006 0.2954 0.145
atm, kp/cm2 0.9807 9.807 98.07 1 1 735.56 28.97 14.22
m H2O 0.9807 9.807 98.07 1 1 735.56 28.97 14.22
torr, mm Hg 0.00133 0.01333 0.1333 0.00136 0.00136 1 0.0394 0.0193
in Hg 0.0338 0.3385 3.885 0.03446 0.03446 25.35 1 0.49
psi 0.0689 0.6896 6.896 0.0703 0.0703 51.68 2.035 1
International vacuum/pressure conversion table with absolute and relative value comparison
Relative vacuum [%] Residual pressure, absolute [bar] Pressure, relative [bar] N/cm2 kPa atm, kp/cm2 m H2O torr, mm Hg in Hg
10 0.9 –0.101 –1.01 –10.1 –0.103 –0.103 –76 –3
20 0.8 –0.203 –2.03 –20.3 –0.207 –0.207 –152 –6
30 0.7 –0.304 –3.04 –30.4 –0.31 –0.31 –228 –9
40 0.6 –0.405 –4.05 –40.5 –0.413 –0.413 –304 –12
50 0.5 –0.507 –5.07 –50.7 –0.517 –0.517 –380 –15
60 0.4 –0.608 –6.08 –60.8 –0.62 –0.62 –456 –18
70 0.3 –0.709 –7.09 –70.9 –0.723 –0.723 –532 –21
80 0.2 –0.811 –8.11 –81.1 –0.827 –0.827 –608 –24
90 0.1 –0.912 –9.12 –91.2 –0.93 –0.93 –684 –27