# Conversion to sea-level pressure

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

 The atmospheric pressure shown on the weather map is adjusted to the equivalent sea level pressure. (1atm=1013.25hPa)
 at present location:
Altitude h
 m
Atmospheric pressure P
 hPa
Temperature T
 °C

Sea-level pressure P0
 hPa
=
 atm

 $\normal Sea-level\ pressure\\\vspace{5}\hspace{20}P_0=P\left(1-{\large\frac{0.0065h}{T+0.0065h+273.15}}\right)^{-5.257}$

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