Air Temperature and Altitude

Altitude and air temperature and air density

The standard values for pressure, temperature and density (ignoring the slight effect of humidity) at altitudes from sea level to 16,000 feet (about 4900 m).

Altitude
(feet)
Pressure
(in. Hg)
Temp.
(F)
Density
(%)
sea level 29.92 59.0 100
2,000 27.82 51.9 94.3
4,000 25.84 44.7 88.8
6,000 23.98 37.6 83.6
8,000 22.22 30.5 78.6
10,000 20.57 23.3 73.8
12,000 19.02 16.2 69.3
14,000 17.57 9.1 65.0
16,000 16.21 1.9 60.9
  • 1 ft (foot) = 0.3048 m
  • 1 in mercury (Hg) = 3,376.8 N/m2 (Pa)= 0.49 lb/in2 (psi) = 12.8 in water
  • T(oC) = 5/9[T(oF) - 32]

Search the Engineering ToolBox

Engineering ToolBox - SketchUp Edition - Online 3D modeling!

3D Engineering ToolBox - draw and model technical applications

Engineering ToolBox - SketchUp Edition - enabled for use with the amazing, fun and free Google SketchUp

Translate the Engineering ToolBox
About the EngineeringToolbox