- Altitude Calculators -

Enter air temperature (OAT) (°C or °F), QNH (hPa or inHg) and elevation (feet) in the grey fields.
The fields are pre-filled when you have requested a METAR previously.

Pressure Density Altitude
Temp (OAT)	°F  °C
QNH	hPa (mb)  inHg
Elevation	Feet  @
Pressure Altitude	Feet
Density Altitude	Feet

--------------------------------------------------------

This calculates the actual altitude you are at when you know QNH and Pressure Altitude.
Helpful when you are unsure of the accuracy of your altitude indicator.

Actual Altitude Calculator
Temp (OAT)	°F  °C
QNH	hPa (mb)  inHg
Pressure Alt	Feet
Actual Altitude	Feet

--------------------------------------------------------

See the image below for a graphical relationship of pressure & density altitude vs temperature.

---