Pressure Conversion Information Tables
These data tables are provided as general formulae for converting from one pressure designation to another, and as general atmospheric pressure, based on elevation but with no consideration for temperature, other than standard. You also want to try:
Pressure Altitude Calculator
Pressure Altitude To Density Altitude Conversion Table
Density Altitude Calculator
Virtual Pressure Conversion Table
Pressure Conversion Formulae
To convert
Into
Multiply by
atmosphere
bar
1.01295
atmosphere
dynes/cm2
1.01295 x 106
atmosphere
in. Hg
29.9213
atmosphere
in. water
406.86
atmosphere
kg/cm2
1.03325
atmosphere
mbar
1012.95
atmosphere
mtorr or micron Hg
7.6 x 105
atmosphere
Pa or N/m2
1.01295 x 105
atmosphere
PSI or lb/in2
14.696
atmosphere
torr or mm Hg
760
bar
atmosphere
0.9872
bar
dynes/cm2
1 x 106
bar
in. Hg
29.54
bar
in. water
401.65
bar
kg/cm2
1.02
bar
mbar
1000
bar
mtorr or micron Hg
7.5028 x 105
bar
Pa or N/m2
1 x 105
bar
psi or lb/in2
14.508
bar
torr or mm Hg
750.2838
dynes/cm2
atmosphere
9.872 x 10-7
dynes/cm2
bar
1 x 10-6
dynes/cm2
in. Hg
2.954 x 10-5
dynes/cm2
in. water
4.0165 x 10-4
dynes/cm2
kg/cm2
1.0200 x 10-6
dynes/cm2
mbar
1 x 10-3
dynes/cm2
mtorr or micron Hg
0.75028
dynes/cm2
Pa or N/m2
0.1
dynes/cm2
psi or lb/in2
1.4508 x 10-5
dynes/cm2
torr or mm Hg
7.5028 x 10-4
in. Hg
atmosphere
3.342 x 10-2
in. Hg
bar
3.385 x 10-2
in. Hg
dynes/cm2
3.385 x 104
in. Hg
in. water
13.598
in. Hg
kg/cm2
3.4532 x 10-2
in. Hg
mbar
33.85
in. Hg
mtorr or micron Hg
2.54 x 104
in. Hg
Pa or N/m2
3385
in. Hg
psi or lb/in2
0.4912
in. Hg
torr or mm Hg
25.4
in. water
atmosphere
2.458 x 10-3
in. water
bar
2.489 x 10-3
in. water
dynes/cm2
2.489 x 10-3
in. water
kg/cm2
2.5396 x 10-3
in. water
in. Hg
7.354 x 10-2
in. water
mbar
2.489
in. water
mtorr or micron Hg
1.868 x 10-3
in. water
Pa or N/m2
248.9
in. water
psi or lb/in2
3.612 x 10-2
in. water
torr or mm Hg
1.868
kg/cm2
atmosphere
0.9678
kg/cm2
bar
0.9804
kg/cm2
dynes/cm2
9.804 x 105
kg/cm2
in. Hg
28.958
kg/cm2
in. water
393.76
kg/cm2
mbar
9.804 x 102
kg/cm2
mtorr or micron Hg
7.3554 x 105
kg/cm2
Pa or N/m2
9.804 x 104
kg/cm2
psi or lb/in2
14.223
kg/cm2
torr or mm Hg
7.3554 x 102
mbar
atmosphere
9.872 x 10-4
mbar
bar
0.001
mbar
dynes/cm2
1000
mbar
kg/cm2
1.0200 x 10-3
mbar
in. Hg
2.954 x 10-2
mbar
in. water
0.4018
mbar
mtorr or micron Hg
7.5028 x 102
mbar
Pa or N/m2
100
mbar
psi or lb/in2
1.450 x 10-2
mbar
torr or mm Hg
0.75028
mtorr or micron Hg
atmosphere
1.316 x 10-6
mtorr or micron Hg
bar
1.3328 x 10-6
mtorr or micron Hg
dynes/cm2
1.3328
mtorr or micron Hg
kg/cm2
1.3595 x 10-6
mtorr or micron Hg
in. Hg
3.937 x 10-5
mtorr or micron Hg
in. water
5.353 x 10-4
mtorr or micron Hg
mbar
1.3328 x 10-3
mtorr or micron Hg
Pa or N/m2
0.13328
mtorr or micron Hg
psi or lb/in2
1.934 x 10-5
mtorr or micron Hg
torr or mm Hg
1 x 10-3
Pa or N/m2
atmosphere
9.869 x 10-6
Pa or N/m2
bar
1 x 10-5
Pa or N/m2
dynes/cm2
10
Pa or N/m2
kg/cm2
1.020 x 10-5
Pa or N/m2
in. Hg
2.954 x 10-4
Pa or N/m2
in. water
4.018 x 10-3
Pa or N/m2
mbar
0.01
Pa or N/m2
mtorr or micron Hg
7.5028
Pa or N/m2
psi or lb/in2
1.4508 x 10-4
Pa or N/m2
torr or mm Hg
7.5028 x 10-3
psi or lb/in2
atmosphere
0.06805
psi or lb/in2
bar
0.06893
psi or lb/in2
dynes/cm2
6.8927 x 104
psi or lb/in2
kg/cm2
7.0309 x 10-2
psi or lb/in2
in. Hg
2.036
psi or lb/in2
in. water
27.68
psi or lb/in2
mbar
68.97
psi or lb/in2
mtorr or micron Hg
5.171 x 104
psi or lb/in2
Pa or N/m2
6.8927 x 103
psi or lb/in2
torr or mm Hg
51.71
torr or mm Hg
atmosphere
1.3158 x 10-3
torr or mm Hg
bar
1.3328 x 10-3
torr or mm Hg
dynes/cm2
1.3328 x 10-3
torr or mm Hg
kg/cm2
1.3595 x 10-3
torr or mm Hg
in. Hg
3.937 x 10-2
torr or mm Hg
in. water
0.5353
torr or mm Hg
mbar
1.3328
torr or mm Hg
mtorr or micron Hg
1000
torr or mm Hg
Pa or N/m2
133.28
torr or mm Hg
psi or lb/in2
1.934 x 10-2
Elevation In Feet To Standard Air Pressure
Elevation
in feet
psi
Torr
Inches of HG
Inches of HG -
standard atmosphere
Pa
-3280
16.52
854.3318
33.63472
-3.70552
113901.224
-1640
15.59
806.2369
31.74124
-1.81204
107489.109
0
14.7
760.2105
29.9292
0
101352.784
820
14.26
737.4559
29.03336
0.89584
98319.0955
1640
13.85
716.2528
28.1986
1.7306
95492.2491
2461
13.44
695.0496
27.36384
2.56536
92665.4028
3281
13.03
673.8465
26.52908
3.40012
89838.5564
4101
12.64
653.6776
25.73504
4.19416
87149.605
4921
12.26
634.0259
24.96136
4.96784
84529.601
5742
11.89
614.8914
24.20804
5.72116
81978.5446
6562
11.53
596.274
23.47508
6.45412
79496.4356
8202
10.83
560.0735
22.04988
7.87932
74670.1125
9843
10.17
525.9416
20.70612
9.22308
70119.5793
11483
9.54
493.3611
19.42344
10.50576
65775.8886
13123
8.94
462.3321
18.20184
11.72736
61639.0402
14764
8.38
433.3717
17.06168
12.86752
57777.9818
16404
7.84
405.4456
15.96224
13.96696
54054.8183
18045
7.33
379.071
14.92388
15.00532
50538.4972
19685
6.85
354.2478
13.9466
15.9826
47229.0185
21325
6.39
330.4589
13.01004
16.91916
44057.4348
22966
5.96
308.2214
12.13456
17.79464
41092.6935
24606
5.56
287.5354
11.32016
18.60904
38334.7946
26247
5.17
267.3666
10.52612
19.40308
35645.8432
27887
4.81
248.7492
9.79316
20.13604
33163.7342
29528
4.47
231.1661
9.10092
20.82828
30819.5201
31168
4.15
214.6173
8.4494
21.4798
28613.201
32808
3.84
198.5856
7.81824
22.11096
26475.8294
36.089
3.29
170.1424
6.69844
23.23076
22683.7184
39370
2.81
145.3192
5.72116
24.20804
19374.2397
42651
2.41
124.6332
4.90676
25.02244
16616.3408
45932
2.06
106.5329
4.19416
25.73504
14203.1793
49212
1.74
89.9841
3.54264
26.38656
11996.8602
52493
1.5
77.5725
3.054
26.8752
10342.1208
55774
1.28
66.1952
2.60608
27.32312
8825.27645
59055
1.1
56.8865
2.2396
27.6896
7584.22195
62336
0.94
48.6121
1.91384
28.01536
6481.0624
65617
0.8
41.372
1.6288
28.3004
5515.79778
82021
0.37
19.13455
0.75332
29.17588
2551.05648
984245
0.17
8.79155
0.34612
29.58308
1172.10703
104986
0.13
6.72295
0.26468
29.66452
896.31714
Updated: 6/22/11