Altitude from atmospheric pressure Calculator

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

Altitude from atmospheric pressure
Sea-level pressure P0
    1. hPa
    1. at present location:
Atmospheric pressure P
    1. hPa
Temperature T
    1. °C

    1. at present location:
Altitude h 
    1.  
    2. m
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.

    Altitude from atmospheric pressure
    [1-10] /31Disp-Num
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    [1]  2021/06/15 18:57   20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Needed the calculation formula for implementation in sensor readings processor
    [2]  2021/06/03 04:06   20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Data analysis
    Comment/Request
    Is there a reference where this formula comes from? Any text book/ paper?
    from Keisan
    Please refer to
    Atmospheric pressure from altitude
    -> Related links -> Derivation of an equation

    The pressure formula can be rearranged to make "h" the subject
    and the altitude formula is obtained.
    [3]  2021/01/29 18:25   60 years old level or over / An engineer / Very /
    Purpose of use
    converting pressure readings to altitude
    Comment/Request
    allow other units of entry (mmHg, bar, etc
    [4]  2021/01/29 15:50   30 years old level / Self-employed people / Very /
    Purpose of use
    helped with a UAV controller
    [5]  2020/06/08 17:41   60 years old level or over / An engineer / Very /
    Purpose of use
    Used as a check for my projectile calculation programming.
    Comment/Request
    very useful
    [6]  2020/02/18 20:28   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    To calculate the altitude of a high performance rocket using pressure and temperature sensors
    [7]  2019/08/24 17:18   Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    Calculate height in fitness app
    [8]  2018/08/30 13:49   60 years old level or over / An engineer / Useful /
    Purpose of use
    good calculator
    Comment/Request
    The altimeter of my aircraft does not take into account the temperature.
    Why do you need temperature to compute elevation data ?
    Thanks
    [9]  2018/07/17 18:23   20 years old level / An office worker / A public employee / Very /
    Comment/Request
    How can one calculate the QNH for another elevation that is not more than 16 meters away from where the barometer is?
    [10]  2018/05/31 06:00   Under 20 years old / Elementary school/ Junior high-school student / Very /
    Purpose of use
    Python altitude from pressure and temperature calculator.

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