Atmospheric pressure from altitude Calculator

Calculates the atmospheric pressure at the present location from the altitude and temperature, and sea-level pressure.

Atmospheric pressure from altitude
Sea-level pressure P0
at present location
Altitude h
Temperature T
at present location:
Atmospheric pressure P
The atmospheric pressure observed is adjusted to the equivalent sea level pressure in order to construct the isobaric weather map.
If the altitude is more than 11km high above sea level, the hypsometric formula cannot be applied because the temperature lapse rate varies considerably with altitude.

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