MODEL 5081-A
APPENDIx A
APPENDIx A
BAROMETRIC PRESSURE AS A FUNCTION OF ALTITUDE
the table shows how barometric pressure changes with altitude. Pressure values do not take into account
humidity and weather fronts.
Altitude
Barometric Pressure
m
ft
bar
mm Hg
in Hg
kPa
0
0
1.013
760
29.91
101.3
250
820
0.983
737
29.03
98.3
500
1640
0.955
716
28.20
95.5
750
2460
0.927
695
27.37
92.7
1000
3280
0.899
674
26.55
89.9
1250
4100
0.873
655
25.77
87.3
1500
4920
0.846
635
24.98
84.6
1750
5740
0.821
616
24.24
82.1
2000
6560
0.795
596
23.47
79.5
2250
7380
0.771
579
22.78
77.1
2500
8200
0.747
560
22.06
74.7
2750
9020
0.724
543
21.38
72.4
3000
9840
0.701
526
20.70
70.1
3250
10,660
0.679
509
20.05
67.9
3500
11,480
0.658
494
19.43
65.8
119