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Conversion Factors for Units of Pressure
To>>
From
psi
mbar
bar
atm
Pa
kPa
cmH2O @20C
inH2O @20C
ftH2O @20C
mmHg @0C
inHg @0C
kg/cm2
ft sea water
psi
1
68.9476
0.689476
0.0680460
6894.76
6.8947
70.433
27.730
2.3108
51.7149
2.03602
0.07030686
2.2457
mbar
0.0145038
1
0.001
0.000986923
100
0.100
1.0215
0.40218
0.03352
0.75006
0.02953
0.00101972
0.032571
bar
14.5038
1000
1
0.986923
1000000
100
1021.5
402.18
33.52
750.06
29.5300
1.019716
32.571
atm
14.6959
1013.25
1.01325
1
101325
101.325
1035.08
407.511
35.959
760.0
29.9213
1.033227
33.002
Pa
0.000145038
0.01
0.00001
1
0.001
0.010215
0.0040218
3.352
0.0075006
2.95300
3.2571
kPa
0.145038
10.0
0.010
0.0098692
1000
1
10.215
4.02118
0.3352
7.5006
0.295300
0.0101972
0.32571
cmH2O @20C
0.014198
0.97891
9.7891
0.000966105
97.891
0.097891
1
0.3937
0.035281
0.73424
0.028907
0.00099821
0.031884
inH20 @20C
0.036063
2.4864
0.0024864
0.00245392
248.64
0.24864
2.5400
1
0.083333
1.8650
0.073424
0.0025354
0.080986
ftH2O @20C
0.432756
29.8368
0.0298368
0.0294470
2983.68
2.98368
30.480
12
1
22.380
0.881089
0.030425
0.97183
mmHg @0C
0.0193368
1.33322
0.0013332
0.00131579
133.322
0.133322
1.3619
0.53620
0.04468
1
0.03937
0.00135951
0.043424
inHg @0C
0.491154
33.8639
0.0338639
0.0334211
3386.39
3.38639
34.539
13.619
1.13491
25.400
1
0.0345316
1.1030
kg/cm2
14.2233
980.665
0.980665
0.967842
98060.5
98.0665
1001.8
394.41
32.868
735.559
28.959
1
31.9410
ft sea water
0.4453
30.702
0.030702
0.030301
3070.2
3.0702
31.3638
12.3482
1.02900
23.029
0.90664
0.031308
1
