Pressure Conversion Tools

• Pressure Unit Calculator
• Station Pressure Calculator
• Altimeter Setting Calculator
• Pressure Altitude Calculator
• Density Altitude Calculator
• Vapor Pressure Calculator

Pressure Unit Calculator
	Answers:
inches of mercury	inches of mercury
millimeters of mercury (torr)	millimeters of mercury (torr)
millibars	millibars
hecto Pascals	hecto Pascals
kilo Pascals	kilo Pascals
pounds per square inch	pounds per square inch
standard atmosphere	standard atmosphere

Station Pressure Calculator
Enter the elevation of the station and choose your units:	Station Pressure in inches of mercury:
feet meters	in HG
Enter your altimeter setting and choose your units:	Station Pressure in millimeters of mercury:
in HG mm HG                           millibars (hPA)	mm HG
	Station Pressure in millibars (hectoPascals):
	mb (hPA)

Altimeter Setting Calculator
Enter the elevation of the station and choose your units:	Altimeter Setting in in. of mercury:
feet meters	in HG
Enter your station pressure (not the altimeter setting) and choose your units:	Altimeter Setting in mm of mercury:
in HG mm HG                           millibars (hPA)	mm HG
	Altimeter Setting in millibars (hPa):
	mb (hPA)

Pressure Altitude Calculator
Enter your uncorrected station pressure (not the altimeter setting):	Pressure Altitude in feet:
in HG mm HG                              millibars (hPA)	feet
	Pressure Altitude in meters:
	meters

Density Altitude Calculator
Enter the air temperature and choose a unit:	Density Altitude in feet:
Fahrenheit Celsius                           Kelvin	feet
Enter the actual station pressure (not the altimeter setting) and choose a unit:	Density Altitude in meters:
in HG mm HG                           millibars (hPA)	meters
Enter the dewpoint and choose a unit:
Fahrenheit Celsius                           Kelvin

Vapor Pressure Calculator
Enter a temperature or a dewpoint or both:	Vapor Pressure
If you want the saturated vapor pressure enter the air temperature:	saturated vapor pressure:
° F ° C                             ° Kelvin	mb in of HG mm HG hPA kPA lbs per square in
If you want the actual vapor pressure enter the dewpoint:	actual vapor pressure:
° F ° C                             ° Kelvin	mb in of HG mm HG hPA kPA lbs per square in
If you enter both the air temperature and the dewpoint you'll get a bonus answer.	relative humidity - requires both temp and dewpoint
	%