en.wikipedia.org/wiki/Atmospheric_pressure

Atmospheric pressure, sometimes also called barometric pressure, is the
pressure exerted by ... As altitude increases, atmospheric pressure decreases.
One can calculate the atmospheric pressure at a...

www.mide.com/pages/air-pressure-at-altitude-calculator

Altitude is calculated from air pressure and vice versa. A detailed table and plot
along with descriptions of the equations are included.

www.calctool.org/CALC/phys/default/pres_at_alt

Other physics calcs online calculation: Pressure at altitude - Estimates air
pressure at a given height.

hyperphysics.phy-astr.gsu.edu/hbase/pman.html

The flow in this system is from left to right, driven by a high pressure air supply.
The system is said to have a positive gauge ... Fluid Pressure Calculation ...

keisan.casio.com/exec/system/1224579725

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

www.digitaldutch.com/atmoscalc/

The online 1976 standard atmosphere calculator computes atmospheric
properties like density, temperature, pressure and speed of sound up to 86
kilometers ...

www.engineeringtoolbox.com/air-altitude-pressure-d_462.html

... 2.25577 10<sup>-5</sup> (10000 m))<sup>5.25588</sup>. = 26436 Pa. = 26.4 kPa. vacuum. elevation
altitude atmospheric air pressure meters kPa. The table below indicates air
pressure at elevations below and above sea level. .... Scientific Online Calculator.
12 9 ...

keisan.casio.com/exec/system/1224585971

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

www.endmemo.com/physics/pressurealtitude.php

Air Pressure at Altitude Fomula: p = p0e-(h/h0) Where: p: Atmospheric pressure,
in Pa p0: Atmospheric Pressure at Sea Level, in Pa h: Height (Altitude), in meter

www.csgnetwork.com/barcorrecthcalc.html

There is also an elevation correction chart, for a given temperature, below the
calculator. The standard value for atmospheric pressure at sea level (ATM) is ...