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
    1. hPa
    1. at present location
Altitude h
    1. m
Temperature T
    1. °C

    1. at present location:
Atmospheric pressure P
    2. hPa
    2. atm
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.

Thank you for your questionnaire.
Sending completion


To improve this 'Atmospheric pressure from altitude Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Elementary school/ Junior high-school student
High-school/ University/ Grad student A homemaker An office worker / A public employee
Self-employed people An engineer A teacher / A researcher
A retired people Others
Very Useful A little Not at All
Purpose of use?
Comment/Request (Click here to report a bug).Bug report (Click here to report questionnaire.)
Calculation bug(Please enter information such as specific input values, calculation result, correct result, and reference materials (URL and documents).)
Text bug(Please enter information such as wrong and correct texts)
Your feedback and comments may be posted as customer voice.