How do you calculate room pressure?

Answer 1

Pressure altitude can be determined by dialing your kollsman window to 29.92" or 1013mb the altitude displayed will be pressure altitude. Or if you want to use a mathematical equation to calculate pressure it is: 29.92-current baro.=x then take x*1000+Current field elevation=pressure altitude.

Example: Current baro is 30.08 field elevation is 845'.

29.92-30.08= -.16 now take -.16*1000+845=685 is your pressure altitude.

Answer 2

If you just need to get the current relative air pressure, for example to set the air pressure on your weather station, here´s my suggestion: go to the internet and search for "online metar data" services. You must then provide the airport name or ICAO code for your nearest airfield. You´ll get real-time data provided for aircraft navigation - highly reliable info, btw - including time (GMT), temp, dewpoint, visibility, and altimeter setting (aka QNH). Just check the unit being used. Note it is more accurate than the previously described method.

Answer 3

ambient pressure increases by 1 atm for every 10 meter of water depth.

sea level has pressure = 1 atm

so at depth of 10m >>> ambient pressure = 2atm

so at depth of 20m >>> ambient pressure = 3atm

so at depth of 30m >>> ambient pressure = 4atm

Answer 4

Presure = Force/Area
Pressure is calculated by dividing the total force by total area.

Answer 5

Height * density of substance * gravity

note: gravity on earth is always =10

Answer 6

An ambient pressure is a pressure on the surrounding medium on an object, such as a gas or liquid, which comes into contact with the object.