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Atmospheric air pressure

The hypsometric equation is taken from the keisan online calculator .

The standard barometric height equation is valid for standard atmosphere with static pressure of 1013.25 hPa, air temperature of 15°C and a temperature gradient of 0.65 K per 100 m. The euqation is taken from Wikipedia .

Symbol
$p_{atm}$
Unit
hPa
Formulae
$1013.25\left(1-\frac{0.0065h_{atm}}{\theta_{at}+0.0065h_{atm}+\theta_{abs}}\right)^{5.257}$hypsometric equation for typical static pressure
$1013.25\left(1-\frac{0.0065h_{atm}}{288.15}\right)^{5.255}$standard barometric height equation for standard atmosphere (15°C)
Related
$h_{atm}$
Height above sea level [m]
$\theta_{abs}$
Absolute temperature [K]
$\theta_{at}$
Air temperature under load [°C]
Used in
$f_{atm}$
Relation atmospheric pressure to standard atmosphere