Air density calculator

This calculator is derived from Wikipedia's Density_of_air article.
sea level atmospheric pressure p0 in Pa: sea level standard temperature T0 in K:
planet-surface gravitational acceleration in m/s2:
gas constant R (dry air) in J/(mol·K): molecular weight of dry air M in g/mol:
altitude of tropopause in metres: dry adiabatic lapse rate L in K/km:
Above the tropopause the lapse rate is invalid.
Enter the height and click on the Calculate button to see the temperature, pressure and density of air at that altitude.

Height in km:
At that height, Temperature = Pressure = density =
Caveat: the Titan example uses back of the envelope estimates for the molecular weight of the nitrogen-methane atmosphere, and wild guesses for the lapse rate and tropopause altitude. This page including the javascript is Copyright 2005 User:Wikibob and placed in the Public domain. 1