Conversion
Factors for Units of Stress and Pressure (Small Units) |
|
|
|
|
|
Metric
Units |
British
Units |
|
Millibar
(mb) |
Normal
atmosphere (atm) |
Milimetre
of mercury
(mm Hg) |
Kilogram-
force per sq. m
(kgf/m2)
or
(mm H2O) |
Poundal
per sq. ft.
(pdl/ft2) |
Pound-
force per sq. ft.
(lbf/ft2) |
Inch
of mercury
(in Hg) |
Inch
of water
(in H2O) |
|
1
Millibar
(mb) |
1 |
9.869
x 10-4 |
0.750
06 |
10.197
2 |
67.197 |
2.088
54 |
0.029
5300 |
0.401
463 |
| |
1
Normal atmosphere (atm) |
1.013
25
x 103 |
1 |
7.600
0
x 102 |
1.033
23
x 104 |
6.808
7
x 104 |
2.116
22
x 103 |
29.921
3 |
4.067
82
x 102 |
| |
1
Milimetre of mercury
(mm Hg) |
1.333
22 |
1.315
79
x 10-3 |
1 |
13.595
1 |
89.589
8 |
2.784
50 |
0.039
3701 |
0.535
24 |
| |
1
Kilogram-
force per
sq. m
(kgf/m2) or
(mm H2O) |
0.098
066 5 |
9.678
4
x 10-5 |
0.073
556 |
1 |
6.589
8 |
0.204
816 |
2.895
90
x 10-3 |
0.039
370 1 |
| |
1
Poundal per sq. ft.
(pdl/ft2) |
0.014
881 6 |
1.468
70
x 10-5 |
0.0111
621 |
0.151
751 |
1 |
0.031
081 0 |
4.394
55
x 10-4 |
5.9744
x 10-3 |
| |
1
Pound-force per
sq. ft.
(lbf/ft2) |
0.178
803 |
4.725
41
x 10-4 |
0.359
131 |
4.882
43 |
32.174
0 |
1 |
0.014
139 0 |
0.192
222 |
| |
1
Inch of mercury
(in Hg) |
33.863
9 |
0.0334
211 |
25.4 |
3.45316
x 102 |
2.27555
x 100 |
70.726 |
1 |
13.595
1 |
| |
1
Inch of water
(in H2O) |
2.490
89 |
2.458
32
x 10-3 |
1.868
32 |
25.4 |
1.67380
x 102 |
5.202
3 |
0.073
556 |
1 |
|
|
