Glossary
Aviation Weather
QNH (QNH)
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Definition
The atmospheric pressure adjusted to mean sea level, used for altimeter setting
Related Terms
Airport Elevation (ELEV)
The highest point of an airport's usable landing area measured above mean sea level
Flight Level (FL)
A standard altitude reference based on a fixed pressure setting of 29.92 inHg (1013.25 hPa)
METAR (METAR)
Aviation Routine Weather Report — a standardized format for reporting current weather conditions
Transition Altitude (TA)
The altitude at which aircraft change from local altimeter settings to standard pressure
Frequently Asked Questions
What is QNH (QNH)?
The atmospheric pressure adjusted to mean sea level, used for altimeter setting
What does QNH stand for?
QNH stands for QNH (QNH). The atmospheric pressure adjusted to mean sea level, used for altimeter setting
How does QNH (QNH) relate to other aviation concepts?
QNH (QNH) is closely related to Airport Elevation and Flight Level, among other key aviation concepts.