Conversion of pressure or stress units chart or table
psi kPa kg/cm2 cmH2O
feetH2O
inchHg
mm Hg= torr
inchH2O
ounce per
sq. inch
Atmospheres
bar mbar MPa
psi 16.89475
70.0703069
5870.3069
272.30672
32.03602
51.71486
27.68068 16 0.0680460.0689475
768.947
60.00689
kPa0.145037
71
0.01019716
10.19745
0.3345618
0.2952997 7.50061 4.014722.32060
30.00966923
50.01 10 0.001
kg/cm2 14.223343
98.06694
11000.02
632.8093
1228.95901
735.5588
393.711806
227.57349
0.967841596
0.98066494
1013.25
0.09806
cm H2O0.014222
90.09806
340.0009999
71
0.032808
0.02895810.73553
720.3937
0.227566
0.000967814
0.000980634
0.980665
0.00098
feet H2O 0.4335152.96896
10.0304791
230.48 1 0.882646 22.4192 12 6.93624 0.02949896
0.02968961
29.689 0.00298
inch Hg0.491154
23.38638
90.0345316
34.53253
1.132957
1 25.413.59548
47.85847 0.0334211
0.03386389
33.8639
0.00386
mm Hg = torr
0.0193368
0.1333225
0.00135951
1.359554
0.0446046
0.039370079
1 0.5352550.30938
880.00131578
950.0013332
251.3332
20.00013
inch H2O0.036126
280.24908
190.0025421
92.54 0.08333 0.0735539
1.8682683
1 0.57802 0.002458250.0024908
192.4908
90.00024
9
ounce per square inch
0.06250.43092
230.0043943
084.39430
80.14417
0.12725125
3.23218 1.73004 10.00425287
50.0043092
234.309
0.0004309
Atmospheres
14.696 101.325 1.0332311033.26
3333.8995 29.9213 760 406.794 235.136 1 1.01325
1013.25
0.1013
bar 14.5038 100 1.0197161019.74
6633.4833 29.53
750.0626
401.8596232.060
80.986923 1 1000 0.1
mbar 0.0145 0.1 0.001019 1.0190.00345
60.02953 0.75006 0.40146 .23206 0.00099 0.001 1 0.0001
MPa 145.0377 1000 10.19710197.4
5334.56 295.299 7500.61 4014.74
2320.603
9.669 10 10000 1
Unit Name Symbol SI Equivalent Pa = N/m2
atmosphere (metric) techn. at 9.806650 · 104 Pa
atmosphere (metric) phys. atm 1.013250 · 105 Pa
atmosphere (metric) bar 1 · 105 Pa
barad barad 0.1 Pa
barye 0.1 Pa
centimeter of mercury (0 °C) cm Hg (0 °C) 1333.223684210526 Pa
centimeter of mercury (16 °C) cm Hg (16 °C) 1329.598425 Pa
centimeter of water (4 °C) cm H2O (4 °C) 98.06376018 Pa
centimeter of water (16 °C) cm H2O (16 °C) 97.9706 Pa
dyne per square centimeter dyn/cm2 0.1 Pa
foot of water (4 °C) ft H2O (4 °C) 2988.98 Pa
foot of water (16 °C) ft H2O (16 °C) 2986.08 Pa
gigapascal GPa 1 · 109 Pa
hectopascal hPa 100 Pa
inch of mercury (0 °C) in Hg (0 °C) 3386.388157894736 Pa
inch of mercury (16 °C) in Hg (16 °C) 3377.18 Pa
inch of water (4 °C) in H2O (4 °C) 249.0819508572 Pa
inch of water (16 °C) in H2O (16 °C) 248.845 Pa
kilogram force per square centimeter kgf/cm2 9.80665 · 104 Pa
kilogram force per square decimeter kgf/dm2 980.665 Pa
kilogram force per square meter kgf/m2 9.80665 Pa
kilogram force per square millimeter kgf/mm2 9.80665 · 106 Pa
kilopascal kPa 1000 Pa
kilopound force per square inch kip/in2, ksi, KSI 6.89476 · 106 Pa
megapascal MPa 1 · 106 Pa
meter of water (4 °C) m H2O, (4 °C) 9806.38 Pa
meter of water (16 °C) m H2O, (16 °C) 9797.06 Pa
microbar (barye, barrie) µbar 0.1 Pa
micron of mercury (millitorr) µHg (0 °C) 0.133322 Pa
millibar mbar 100 Pa
millimeter of mercury (0 °C) mm Hg, torr, (0 °C) 133.322368 Pa
millimeter of mercury (16°C) mm Hg, torr, (16 °C)Pa
millimeter of water (4 °C) mm H2O, (4 °C) 9.80638 Pa
millimeter of water (16 °C) mm H2O, (16 °C) 9.79706 Pa
millitorr mtorr 0.133322 Pa
newton per square meter N/m2 1 Pa
ounce force (av.) per square inch ozf/in2, osi 430.922 Pa
pascal Pa, N/m2 1 Pa
pound force per square foot lbf/ft2 47.8803 Pa
pound force per square inch psi, PSI, lbf/in2 6894.76 Pa
poundal per square foot pdl/ft2 1.48816 Pa
poundal per square inch pdl/in2 214.296 Pa
standard atmosphere atm 1.01325 · 105 Pa
ton force (long) per square foot tonf/ft2 (UK) 1.07252 · 105 Pa
ton force (long) per square inch tonf/in2 (UK) 1.54443 · 107 Pa
ton force (short) per square foot tonf/ft2 (US) 9.57605 · 104 Pa
ton force (short) per square inch tonf/in2 (US) 1.37895 · 107Pa
ton force (metric) per square centimeter tonf/cm2 (metric) 9.80665 · 107Pa
ton force (metric) per square meter tonf/m2 (metric) 9806.65 Pa
torr torr 133.322368 Pa
