# Altitude from atmospheric pressure

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

Sea-level pressure P0
 hPa
 at present location:
Atmospheric pressure P
 hPa
Temperature T
 °C

 at present location:
Altitude h
 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.$\normal Hypsometric\ formula\\\hspace{40}h={\large\frac{\left(\left(\frac{P_0}{P}\right)^{\frac{1}{5.257}}-1\right)\times\left(T+273.15\right)}{0.0065}}$

Sending completion

To improve this 'Altitude from atmospheric pressure Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Age
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
Occupation
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
Useful?
Very Useful A little Not at All
Purpose of use?