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Aviation glossary

Indicated Altitude

What is indicated altitude?

Illustration related to indicated altitude
Image: Chris Light — CC BY-SA 4.0, via Wikimedia Commons

Indicated altitude is the altitude you read directly off the altimeter when it's set to the current altimeter setting, with no corrections applied. Think of it as the "raw number" in the window—what the altimeter tells you when you've dialed in the local pressure setting.

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