• Conversion of pressure or stress units •

Definition: pressure = force per area; p = F / A; F = force, A = area, p = pressure

The SI unit of the pressure is the pascal with the formula sign Pa.
1 Pascal is equal to the pressure of 1 newton per square meter. 1 Pa = 1 N / m = 1 kg / m · s.

Fill in the appropriate line the known pressure value
atmosphere (at) techn.
atmosphere (atm) phys.
bar
barad
barye
cm of mercury (Hg) (0 C)
cm of water (H2O) (4 C)
dyne / cm2
foot of water (H2O) (39F)
gigapascal
hectopascal
Inch of mercury (Hg) (32 F)
Inch of mercury (Hg) (60 °F)
Inch of water (H2O) (60 F)
Inch of water (H2O) (39 F)
kg force / cm2
kg force / dm2
kg force / m2
kg force / mm2
kilopascal
kilopounds per square inch
megapascal
meter of water H2O (16 C)
meter of water H2O (4 C)
microbar (bar)
micron of mercury Hg (Millitorr)
millibar
millimeter of water Hg (0 C)
millimeter of water H2O (16 C)
mm H2O (4 C)
millitorr
newton / m2 = pascal
ounce (avdp) / square inch
pascal = N / m2
pounds per square foot
psi = pounds per square inch
poundal per square foot
poundal per square inch
standard atmosphere atm
ton (long) per square foot
ton (long) per square inch
tonne (metric) / cm2
ton (short) per square foot
ton (short) per square inch
ton per square inch
torr

Conversion of pressure or stress units chart or table

  psi kPa kg/cm2 cm
H2O
feet
H2O
inch
Hg
mm Hg
= torr
inch
H2O
ounce per
sq. inch
Atmospheres bar mbar MPa
psi 1 6.894757 0.070306958 70.306927 2.306723 2.03602 51.71486 27.68068 16 0.068046 0.06894757 68.9476 0.00689
kPa 0.1450377 1 0.01019716 10.19745 0.3345618 0.2952997 7.50061 4.01472 2.320603 0.009669235 0.01 10 0.001
kg/cm2 14.223343 98.06694 1 1000.026 32.809312 28.95901 735.5588 393.711806 227.57349 0.967841596 0.98066494 1013.25 0.09806
cm H2O 0.0142229 0.0980634 0.00099997 1 0.032808 0.0289581 0.7355372 0.3937 0.227566 0.000967814 0.000980634 0.980665 0.00098
feet H2O 0.433515 2.968961 0.03047912 30.48 1 0.882646 22.4192 12 6.93624 0.02949896 0.02968961 29.689 0.00298
inch Hg 0.4911542 3.386389 0.0345316 34.53253 1.132957 1 25.4 13.595484 7.85847 0.0334211 0.03386389 33.8639 0.00386
mm Hg = torr 0.0193368 0.1333225 0.00135951 1.359554 0.0446046 0.039370079 1 0.535255 0.3093888 0.0013157895 0.001333225 1.33322 0.00013
inch H2O 0.03612628 0.2490819 0.00254219 2.54 0.08333 0.0735539 1.8682683 1 0.57802 0.00245825 0.002490819 2.49089 0.000249
ounce per square inch 0.0625 0.4309223 0.004394308 4.394308 0.14417 0.12725125 3.23218 1.73004 1 0.004252875 0.004309223 4.309 0.0004309
Atmospheres 14.696 101.325 1.033231 1033.2633 33.8995 29.9213 760 406.794 235.136 1 1.01325 1013.25 0.1013
bar 14.5038 100 1.019716 1019.7466 33.4833 29.53 750.0626 401.8596 232.0608 0.986923 1 1000 0.1
mbar 0.0145 0.1 0.001019 1.019 0.003456 0.02953 0.75006 0.40146 .23206 0.00099 0.001 1 0.0001
MPa 145.0377 1000 10.197 10197.45 334.56 295.299 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) bar 0.1 Pa
micron of mercury (millitorr) Hg (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 (16C) 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

 

home