|
Barometric
Pressure vs. Altitude Table |
|
Altitude Above Sea Level
|
Temperature
|
Barometer
|
Atmospheric Pressure
|
|
Feet
|
Miles
|
Meters
|
F
|
C
|
In. Hg. Abs.
|
mm
Hg. Abs.
|
PSI
|
Kg
/ sq. cm
|
kPa
|
|
-5000
|
|
-1526
|
77
|
25
|
35.58
|
903.7
|
17.48
|
1.229
|
120.5
|
|
-4500
|
|
-1373
|
75
|
24
|
35.00
|
889.0
|
17.19
|
1.209
|
118.5
|
|
-4000
|
|
-1220
|
73
|
23
|
34.42
|
874.3
|
16.9
|
1.188
|
116.5
|
|
-3500
|
|
-1068
|
71
|
22
|
33.84
|
859.5
|
16.62
|
1.169
|
114.6
|
|
-3000
|
|
-915
|
70
|
21
|
33.27
|
845.1
|
16.34
|
1.149
|
112.7
|
|
-2500
|
|
-763
|
68
|
20
|
32.70
|
830.6
|
16.06
|
1.129
|
110.7
|
|
-2000
|
|
-610
|
66
|
19
|
32.14
|
816.4
|
15.78
|
1.109
|
108.8
|
|
-1500
|
|
-458
|
64
|
18
|
31.58
|
802.1
|
15.51
|
1.091
|
106.9
|
|
-1000
|
|
-305
|
63
|
17
|
31.02
|
787.9
|
15.23
|
1.071
|
105.0
|
|
-500
|
|
-153
|
61
|
16
|
30.47
|
773.9
|
14.96
|
1.052
|
103.1
|
|
0
|
|
0
|
59
|
15
|
29.92
|
760.0
|
14.696
|
1.0333
|
101.33
|
|
500
|
|
153
|
57
|
14
|
29.38
|
746.3
|
14.43
|
1.015
|
99.49
|
|
1000
|
|
305
|
55
|
13
|
28.86
|
733.0
|
14.16
|
0.996
|
97.63
|
|
1500
|
|
458
|
54
|
12
|
28.33
|
719.6
|
13.91
|
0.978
|
95.91
|
|
2000
|
|
610
|
52
|
11
|
27.82
|
706.6
|
13.66
|
0.960
|
94.19
|
|
2500
|
|
763
|
50
|
10
|
27.32
|
693.9
|
13.41
|
0.943
|
92.46
|
|
3000
|
|
915
|
48
|
9
|
26.82
|
681.2
|
13.17
|
0.926
|
90.81
|
|
3500
|
|
1068
|
47
|
8
|
26.33
|
668.8
|
12.93
|
0.909
|
89.15
|
|
4000
|
|
1220
|
45
|
7
|
25.84
|
656.3
|
12.69
|
0.892
|
87.49
|
|
4500
|
|
1373
|
43
|
6
|
25.37
|
644.4
|
12.46
|
0.876
|
85.91
|
|
5000
|
0.95
|
1526
|
41
|
5
|
24.90
|
632.5
|
12.23
|
0.86
|
84.33
|
|
6000
|
1.1
|
1831
|
38
|
3
|
23.99
|
609.3
|
11.78
|
0.828
|
81.22
|
|
7000
|
1.3
|
2136
|
34
|
1
|
23.10
|
586.7
|
11.34
|
0.797
|
78.19
|
|
8000
|
1.5
|
2441
|
31
|
-1
|
22.23
|
564.6
|
10.91
|
0.767
|
75.22
|
|
9000
|
1.7
|
2746
|
27
|
-3
|
21.39
|
543.3
|
10.5
|
0.738
|
72.40
|
|
10,000
|
1.9
|
3050
|
23
|
-5
|
20.58
|
522.7
|
10.1
|
0.71
|
69.64
|
|
15,000
|
2.8
|
4577
|
6
|
-14
|
16.89
|
429.0
|
8.29
|
0.583
|
57.16
|
|
20,000
|
3.8
|
6102
|
-12
|
-24
|
13.76
|
349.5
|
6.76
|
0.475
|
46.61
|
|
25,000
|
4.7
|
7628
|
-30
|
-34
|
11.12
|
282.4
|
5.46
|
0.384
|
37.65
|
|
30,000
|
5.7
|
9153
|
-48
|
-44
|
8.903
|
226.1
|
4.37
|
0.307
|
30.13
|
|
35,000
|
6.6
|
10,679
|
-66
|
-54
|
7.06
|
179.3
|
3.47
|
0.244
|
23.93
|
|
40,000
|
7.6
|
12,204
|
-70
|
-57
|
5.558
|
141.2
|
2.73
|
0.192
|
18.82
|
|
45,000
|
8.5
|
13,730
|
-70
|
-57
|
4.375
|
111.1
|
2.15
|
0.151
|
14.82
|
|
50,000
|
9.5
|
15,255
|
-70
|
-57
|
3.444
|
87.5
|
1.69
|
0.119
|
11.65
|
|
55,000
|
10.4
|
16,781
|
-70
|
-57
|
2.712
|
68.9
|
1.33
|
0.0935
|
9.17
|
|
60,000
|
11.4
|
18,306
|
-70
|
-57
|
2.135
|
54.2
|
1.05
|
0.0738
|
7.24
|
|
70,000
|
13.3
|
21,357
|
-67
|
-55
|
1.325
|
33.7
|
0.651
|
0.651
|
4.49
|
|
80,000
|
15.2
|
24,408
|
-62
|
-52
|
0.8273
|
21.0
|
0.406
|
0.406
|
2.80
|
|
90,000
|
17.1
|
27,459
|
-57
|
-59
|
0.520
|
13.2
|
0.255
|
0.255
|
1.76
|
|
100,000
|
18.9
|
30,510
|
-51
|
-46
|
0.329
|
8.36
|
0.162
|
0.162
|
1.12
|
Many of Sable
Systems' instruments, such as the OXZILLA II,
the FC-10, the PA-10,
the CA-10 and the FOXBOX,
contain accurate, high resolution barometric pressure sensors that are used for
correcting the instruments' readings to a standard pressure of 101.3 kPa.
This eliminates drift caused by fluctuations in barometric pressure. The resolution of our sensors is so good (0.1 Pa) that they can easily discern and correct for a pressure change resulting from lifting the instrument a few inches. For
calibration, we use our in-house, NIST-traceable
ParoScientific pressure
standard.
Sable Systems is a company founded by scientists for scientists.
We are certain that you will enjoy doing business with us.
|
