Density Altitude Sign In
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Density Altitude1,569′
-2,000′2,000′5,000′8,000′12,000′
Pressure Altitude1,268′

ISA Std Temp

12.5°C

Actual OAT

15°C

Deviation

+2.5°C

Low — Minimal Impact
  • •Standard performance expected
  • •Normal operations
Tip

Density altitude is the altitude at which the aircraft "thinks" it's flying based on air density. Higher DA means thinner air → less lift, less engine power, longer takeoff rolls. The three H's that increase DA: Hot, High, Humid.

Default uses the E6B / PHAK dry-air formula (DA = PA + 120 × ΔT). Enable "Adjust for Humidity" for the NWS virtual-temperature method used by ForeFlight — it factors in dewpoint and will read slightly higher on humid days.

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Training aid only — verify all data against your POH and current FAA publications.