51
Pressure Conversion Chart
Units of Pressure
PSI in.WG in.Hg kPascal mBars mm.H
2
O mm.Hg
PSI
1.000 27.680 2.036 6.8947 68.947 703.08 51.715
in.WG
0.03613 1.000 0.07355 0.2491 2.491 25.400 1.8683
in.Hg
0.4912 13.596 1.000 3.3864 33.864 345.32 25.400
kPascal
0.14504 4.0147 0.2953 1.000 10.000 101.973 7.5006
millibar
0.01450 0.40147 0.02953 0.100 1.000 10.197 0.7501
mm.WG
0.14223 0.03937 2.8958x10
-3
9.806x10
-3
0.09806 1.000 0.07355
nmm.Hg
0.01934 0.53525 0.03937 0.13332 1.3332 13.595 1.000
Units of Velocity
ft/min km/hr ft/sec miles/hr m/sec
1.0 0.018 0.0167 0.01136 5.08x10
-3
54.7 1.0 0.911 0.621 0.277
60.0 1.097 1.0 0.68 0.3
88.0 1.61 1.46 1.0 0.447
196.85 3.6 3.28 2.236 1.0
Units of Rates Flow
ft
3
/hr lit/min m
3
/hr ft
3
/min lit/sec lb.air/min m
3
/sec
1 0.472 0.028 0.017 7.866X10
-3
1.25X10
-3
7.87X10
-5
2.119 1 0.06 0.035 0.0167 0.265 1.67X10
-5
35.31 16.67 1 0.589 0.277 0.044 2.78X10
-4
60 28.32 1.699 1 0.472 0.075 4.72X10
-4
127.13 60 3.6 2.119 1 0.16 0.001
800 377.56 22.65 13.33 6.29 1 0.006
127133 6,000 3,600 2,119 1,000 159 1