Tech Talk

Elevation Versus Atmospheric Pressure

Find your elevation and find the corresponding atmospheric pressure to the right. If you don't find the exact elevation you need, you may interpolate between the values that span your desired elevation.

Elev(ft)	PSIA	"HgA
0	14.7	29.92
100	14.64	29.81
200	14.59	29.7
300	14.53	29.6
400	14.48	29.49
500	14.42	29.38
600	14.37	29.28
700	14.32	29.17
800	14.26	29.07
900	14.21	28.96
1000	14.16	28.86
1100	14.11	28.75
1200	14.06	28.65
1300	14.01	28.54
1400	13.96	28.44
1500	13.91	28.33
1600	13.86	28.23
1700	13.81	28.13
1800	13.76	28.02
1900	13.71	27.92
2000	13.66	27.82
2100	13.61	27.72
2200	13.56	27.62
2300	13.51	27.51
2400	13.46	27.41
2500	13.41	27.31
2600	13.36	27.21
2700	13.31	27.11
2800	13.26	27.01
2900	13.21	26.91
3000	13.16	26.81
3100	13.11	26.71
3200	13.06	26.61
3300	13.02	26.52
3400	12.97	26.42
3500	12.92	26.32
3600	12.87	26.22
3700	12.82	26.13
3800	12.78	26.03
3900	12.73	25.94
4000	12.68	25.84
4100	12.63	25.74
4200	12.59	25.65
4300	12.54	25.55
4400	12.5	25.46
4500	12.45	25.36
4600	12.4	25.27
4700	12.36	25.17
4800	12.31	25.08
4900	12.27	24.98
5000	12.22	24.89
5100	12.17	24.8
5200	12.13	24.71
5300	12.08	24.61
5400	12.04	24.52
5500	11.99	24.43
5600	11.95	24.34
5700	11.9	24.25
5800	11.86	24.16
5900	11.81	24.07
6000	11.77	23.98
7000	11.33	23.09
8000	10.91	22.22
9000	10.5	21.38
10000	10.1	20.58
11000	9.71	19.75

A detailed database of elevations is available at the USGS website.

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