Pressure Conversion Chart
Units of Pressure
PSI
PSI
1.000
in.WG
0.03613
in.Hg
0.4912
kPascal
0.14504
millibar
0.01450
mm.WG
0.14223
nmm.Hg
0.01934
Units of Velocity
ft/min
1.0
54.7
60.0
88.0
196.85
Units of Rates Flow
ft
/hr
lit/min
3
1
0.472
2.119
1
35.31
16.67
60
28.32
127.13
60
800
377.56
127133
6,000
in.WG
in.Hg
27.680
2.036
1.000
0.07355
13.596
1.000
4.0147
0.2953
0.40147
0.02953
0.03937
2.8958x10
0.53525
0.03937
km/hr
0.018
1.0
1.097
1.61
3.6
m
/hr
3
0.028
0.06
1
1.699
3.6
22.65
3,600
kPascal
6.8947
0.2491
3.3864
1.000
0.100
9.806x10
-3
-3
0.13332
ft/sec
0.0167
0.911
1.0
1.46
3.28
ft
/min
lit/sec
3
0.017
7.866X10
0.035
0.0167
0.589
0.277
1
0.472
2.119
1
13.33
6.29
2,119
1,000
mBars
mm.H
68.947
703.08
2.491
25.400
33.864
345.32
10.000
101.973
1.000
10.197
0.09806
1.000
1.3332
13.595
miles/hr
0.01136
0.621
0.68
1.0
2.236
lb.air/min
1.25X10
-3
0.265
0.044
0.075
0.16
1
159
O
mm.Hg
2
51.715
1.8683
25.400
7.5006
0.7501
0.07355
1.000
m/sec
5.08x10
-3
0.277
0.3
0.447
1.0
m
/sec
3
7.87X10
-3
-5
1.67X10
-5
2.78X10
-4
4.72X10
-4
0.001
0.006
1
65