# Conversion to sea-level pressure Calculator

## 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)
1. at present location:
Altitude h
1. m
Atmospheric pressure P
1. hPa
Temperature T
1. °C

Sea-level pressure P0
 hPa
=
 atm
 $\normal Sea-level\ pressure\\\vspace{5}\hspace{20}P_0=P\left(1-{\large\frac{0.0065h}{T+0.0065h+273.15}}\right)^{-5.257}$

Sending completion

To improve this 'Conversion to sea-level 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?