Altitude Calculator
The top two rows are for calculating Pressure Altitude only.
The next section is for calculating the Density Altitude. The density altitude takes into account the effect of both temperature and pressure.
Please cross check and do not rely on this to fly, this is for theory purpose only. May contain errors. Please report errors immediately.
See: Explanatory Video Below
See Explanatory Diagram Below
Rapid Learning Activity
Manually calculate these questions below to learn , then click to reveal the answer and cross check your answer. Use the above calculator to write enough of your own questions to make sure you learn this.
This WILL BE IN YOUR PPL EXAM!!!!! In fact you will likely have 3-4 questions on this.
RPL you will definitely need to know Pressure height!!!!
Pressure Height = 1380 ft
Density Height = 2460 ft
Pressure Height = 3290 ft
Density Height = 3530 ft
Pressure Height = 2460 ft
Density Height = 5220 ft
Pressure Height = 890 ft
Density Height = 1130 ft
Pressure Height = 25000 ft
Density Height = 25600 ft
Note at 1013 hpa Elevation/Altitude = Pressure Height
Pressure Height = 27390 ft
Density Height = 27390 ft
Note: When OAT = ISA Temp Pressure Altitude/Elevation = Density Altitude
Pressure Height = 13790 ft
Density Height = 14150 ft
Note when OAT is warmer than ISA Temp Density Alt is > Pressure Height
Video 1 - How The Calculator Works + Plus Some Theory
Video 2 - How To Calculate Density Altitude
And Here Is Why You Need To Learn It
Pressure Height (100% in both RPL & PPL)
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Density Altitude (RPL?? & 100% in PPL)
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Effect Of Humidity On Density Altitude
It should also be noted that the amount of water in the atmosphere affects density altitude. We are not required to calculate it as the calculation is very complex. More water = lower air density = lower performance.
If you want to see how much use the calculator here