EasyUnitConverter.com Easy Unit Converter

Air pressure Calculator

Fill in the value of the known unit and click on ‘Calculate’ to calculate the four unknown air pressure units.
Pascal (hPa)
Bar (mBar)
Inches of Mercury (inHg)
Torr (mmHg)
Atmosphere (atm)

Relationship Between Altitude and Pressure

Altitude above Sea Level Absolute Atmospheric Pressure
feet miles meters kPa atm psia
-5000 -0.95 -1524 121.0 1.19 17.55
-4000 -0.76 -1219 116.9 1.15 16.95
-3000 -0.57 -914 112.8 1.11 16.36
-2000 -0.38 -610 108.9 1.07 15.79
-1000 -0.19 -305 105.0 1.04 15.24
-500 -0.09 -152 103.2 1.02 14.96
0 0.00 0 101.3 1.00 14.70
500 0.09 152 99.5 0.98 14.43
1000 0.19 305 97.7 0.96 14.17
1500 0.28 457 96.0 0.95 13.92
2000 0.38 610 94.2 0.93 13.66
2500 0.47 762 92.5 0.91 13.42
3000 0.57 914 90.8 0.90 13.17
3500 0.66 1067 89.1 0.88 12.93
4000 0.76 1219 87.5 0.86 12.69
4500 0.85 1372 85.9 0.85 12.46
5000 0.95 1524 84.3 0.83 12.23
6000 1.14 1829 81.2 0.80 11.78
7000 1.33 2134 78.2 0.77 11.34
8000 1.52 2438 75.3 0.74 10.92
9000 1.70 2743 72.4 0.71 10.51
10000 1.89 3048 69.7 0.69 10.11
15000 2.84 4572 57.2 0.56 8.29
20000 3.79 6096 46.6 0.46 6.75
25000 4.73 7620 37.6 0.37 5.45
30000 5.68 9144 30.1 0.30 4.36
35000 6.63 10668 23.8 0.24 3.46
40000 7.58 12192 18.8 0.19 2.72
45000 8.52 13716 14.7 0.15 2.14
50000 9.47 15240 11.6 0.11 1.68
55000 10.42 16764 9.1 0.09 1.32
60000 11.36 18288 7.2 0.07 1.04
65000 12.31 19812 5.6 0.06 0.82