See the altitude your aircraft really feels on a hot or high day — the single biggest driver of take-off, climb, and landing performance.
Enter the pressure altitude and the outside air temperature. SkyStudy uses the 120 ft per °C of ISA deviation rule — high, hot and humid air pushes density altitude up and performance down.
Enter a pressure altitude and temperature to see the density altitude.
Warm air is thinner. Every °C above standard adds about 120 ft to the density altitude and erodes performance margins.
Use the pressure altitude calculator first, then bring that value here with the OAT for the full picture.
Performance charts assume the density altitude, not your field elevation. On a hot day the difference can be thousands of feet.
SkyStudy uses the standard rule: density altitude = pressure altitude + 120 ft for every °C the outside air temperature is above the ISA temperature at that level.
It is the altitude the aircraft performs at. High density altitude — hot, high airfields — means longer take-off and landing rolls, reduced climb, and lower engine and propeller efficiency.
Yes. Calculate pressure altitude from your elevation and QNH first, then enter that here with the outside air temperature.
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