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Pressure Conversion
  psi kPa kg/cm2 cm of
H2O
in of
H2O
ft of
H2O
in of
Hg
mm of
Hg
oz/in2 atmo-
spheres
bar mbar MPa
psi 1 6.894757 .0703069 70.30692 27.68068 2.306723 2.03602 51.71486 16 .0680460 .0689474 68.9475 .00689
kPa .1450377 1 .0101971 10.19745 4.01472 .3345618 .2952997 7.500610 2.320603 .987 .01 10 .001
kg/cm2 14.22334 98.06694 1 1000.026 393.361 32.80931 28.95901 735.5588 227.5734 .9678416 .9806649 981.354 .098135
cm of H2O .0142229 .0980634 .0009999 1 .3937 .032808 .0289581 .7355372 .227566 .0009678 .0009806 .9806 .000098
in of H2O .036125 .2490819 .0025421 2.54 1 .08333 .0735539 1.868268 .578020 .0024582 .0024908 2.49089 .000249
ft of H2O .433515 2.98898 .0304791 30.480 12 1 .882646 22.4192 6.93624 .0294989 .0296865 29.865 .00298
in of Hg .4911542 3.386389 .0345316 34.53253 13.59548 1.132957 1 25.4 7.85847 .0334211 .0338638 33.8639 .003386
mm of Hg .0193368 .1333225 .0013595 1.359554 .535255 .0446046 .0393700 1 .3093888 .0013158 .0013332 1.33322 .00013
oz/in2 .0625 .4309223 .0043943 4.394308 1.73004 .14417 .1272514 3.23218 1 .0042529 .0043092 4.309 .0004309
atmospheres 14.6960 101.3253 1.033231 1033.263 406.794 33.8995 29.9213 760 235.136 1 1.013254 1013.25 .1013
bar 14.5038 100 1.019716 1019.746 401.47 33.4833 29.5300 750.0626 232.0608 .986923 1 1000 .1
mbar .0145 .1 .001019 1.019 .40147 .003348 .02953 .75006 .23206 .00099 .001 1 .0001
MPa 145 1000 10.197 10197.45 4041.74 334.56 295.229 7500.61 2320.603 9.872 .1 1000 1
 
Table of Equivalents
Atmospheres x
=
33.9 =
÷
Feet of Water
Atmospheres x
=
29.92 =
÷
Inches of
Mercury
Atmospheres x
=
14.7 =
÷
PSI
BTU x
=
778.3 =
÷
Foot-Pounds
BTU
per hour
x
=
0.2931 =
÷
Watts
BTU
per minute
x
=
0.02356 =
÷
Horsepower
Centimetres x
=
0.3937 =
÷
Inches
Cubic
Centimetres
x
=
0.0002642 =
÷
Gallons (US)
Cubic
Centimetres
x
=
0.001 =
÷
Litres
Cubic Feet x
=
1728 =
÷
Cubic Inches
Cubic Feet x
=
7.48052 =
÷
Gallons (US)
Cubic Inches x
=
0.0005787 =
÷
Cubic Feet
Cubic Inches x
=
0.004329 =
÷
Gallons (US)
Days x
=
86 400 =
÷
Seconds
Degrees (angle) x
=
0.01745 =
÷
Radians
Feet x
=
0.3048 =
÷
Metres
Feet x
=
0.0001894 =
÷
Miles (statute)
Feet of Water x
=
0.0295 =
÷
Atmospheres
Feet of Water x
=
0.8826 =
÷
Inches of
Mercury
Feet of Water x
=
0.4335 =
÷
PSI
Feet per
Minute
x
=
0.1136 =
÷
Miles per
Hour
Feet Per
Second
x
=
0.6818 =
÷
Miles per
Hour
Foot-Pounds x
=
.001286 =
÷
BTU
Foot-Pounds
per Minute
x
=
.0000303 =
÷
Horsepower
Foot-Pounds
per Second
x
=
.001818 =
÷
Horsepower
Gallons (US) x
=
0.1337 =
÷
Cubic Feet
Gallons (US) x
=
231 =
÷
Cubic Inches
Gallons of
Water
x
=
8.3453 =
÷
Pounds of
Water
Horsepower x
=
42.44 =
÷
BTU per
Minute
Horsepower x
=
33 000 =
÷
Foot-Pounds
per Minute
Horsepower x
=
550 =
÷
Foot-Pounds
per Second
Horsepower x
=
745.7 =
÷
Watts
Hours x
=
0.04167 =
÷
Days
Hours x
=
0.005952 =
÷
Weeks
Inches x
=
2.54 =
÷
Cenimetres
Inches of
Mercury
x
=
0.03342 =
÷
Atmospheres
Inches of
Mercury
x
=
1.133 =
÷
Feet of
Water
Inches of
Mercury
x
=
0.4912 =
÷
PSI
Inches of
Water
x
=
0.03613 =
÷
PSI
Litres x
=
1000 =
÷
Cubic
Centimetres
Litres x
=
0.2642 =
÷
Gallons (US)
Micron x
=
0.00004 =
÷
Inches
Miles
(statute)
x
=
5280 =
÷
Feet
Miles per
Hour
x
=
88 =
÷
Feet per
Minute
Miles per
Hour
x
=
1.467 =
÷
Feet per
Second
Ounces
(weight)
x
=
0.0625 =
÷
Pounds
Ounces
(liquid)
x
=
1.805 =
÷
Cubic Inches
Pints
(liquid)
x
=
0.5 =
÷
Quarts
(liquid)
Pounds x
=
7000 =
÷
Grains
Pounds x
=
453.59 =
÷
Grams
Pounds x
=
16 =
÷
Ounces
PSI x
=
0.6804 =
÷
Atmospheres
PSI x
=
2.307 =
÷
Feet of
Water
PSI x
=
2.036 =
÷
Inches of
Mercury
Quarts x
=
0.25 =
÷
Gallons
Square Feet x
=
144 =
÷
Square Inches
Temperature
(°F-32)
x
=
0.5555 =
÷
Temperature
(°C)
Tons (US) x
=
2000 =
÷
Pounds
Watts x
=
0.001341 =
÷
Horsepower


Reference > Conversions
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