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E6B Flight Computer

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Solve core E6B flight-planning checks: wind correction for a desired course and quick density altitude from pressure altitude and outside air temperature.

Wind Triangle

deg
deg

Density Altitude

True Heading
99.6°
WCA 9.6°
Groundspeed
118.3 kt
TAS 120 kt
Wind Components
20.0 kt
headwind 0.0 kt
Density Altitude
6800 ft
ISA +15.0°C
N99.6°heading for 90° course118.3 ktwind from 180° at 20 ktground trackaircraft heading

Hotter-than-ISA air raises the effective altitude

The quick E6B approximation uses ISA temperature at pressure altitude and adds about 120 ft for each degree Celsius above standard.

Altitude comparison

+1800 ft correction

ISA temp
5.0°C
ISA deviation
15.0°C
Crosswind
20.0 kt
Headwind
0.0 kt

Open Source and Easy to Use Elsewhere

This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.

Open source: review the implementation and see how the results are produced.

Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.