Density Altitude Calculator

Inputs

Field elevation (h)

Airport or runway elevation.

m

Altimeter setting (Alt)

Use inches of mercury for this quick aviation estimator.

inHg

Outside air temperature (OAT)

Outside air temperature in degrees C.

C

Results

Default result

Pressure altitude

1,524m

Also computed

ISA temperature5.1C

Temperature deviation24.9C

Density altitudeCaution2,435m

Method notes 2 notes

Uses pressure altitude = field elevation + (29.92 - altimeter) * 1000 ft, then density altitude ~= pressure altitude + 120 ft/C * ISA deviation.
This is a dry-air quick estimate. Use approved performance charts and current weather for actual takeoff, climb and landing planning.

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