Pilot One
Free Pilot Tools

Advanced E6B

The E6B flight computer you want open before every flight

Calculate performance, wind, legs, fuel, descent, and conversions without switching tools.

6 planning modules

Visual wind triangle

Reserves and top of descent

E6B

Performance

Calculate TAS, density altitude, ISA deviation, and approximate Mach from cockpit inputs.

kts
ft
°C

True Airspeed

---KT

Density Altitude

---FT

ISA Deviation

---°C

Estimated Mach

---M

What is an E6B Flight Computer?

The E6B flight computer, often called the 'Whiz Wheel', is an iconic analog circular slide rule used by pilots since the 1930s. This digital E6B emulator flawlessly replicates its core capabilities, letting you calculate True Airspeed, Wind Correction Angles, and Fuel Endurance instantly.

How to Calculate the Wind Triangle

A major function of the E6B is solving the Wind Triangle. The vector math combines your Aircraft's True Airspeed and heading with the wind's speed and direction to find your actual track over the ground (Ground Speed) and the compensatory Heading (Wind Correction Angle).

Aviation Planning vs. Reality

While E6B flight computer apps are perfect for pre-flight planning, always remember that forecast winds aloft are just predictions. Constantly cross-check your ground speed in the cockpit to ensure your fuel endurance remains safe.

Q.How do you calculate density altitude on an E6B?

Density altitude is calculated by aligning the pressure altitude with the outside air temperature on the E6B's sliding scale. Our digital E6B does this automatically within the TAS tab.

Q.What does an E6B calculate?

It calculates time, speed, distance, fuel consumption, wind correction angles, density altitude, true airspeed, and Mach numbers. It is an indispensable tool for student pilots and flight planning.

Q.Is the E6B still used by pilots today?

Yes! While modern aircraft have advanced FMS and GPS, the E6B remains a fundamental training requirement for obtaining a Private Pilot License (PPL) and commercial certificates.

Unlock full flight planning features in the Pilot One App

A complete digital E6B for flight planning: TAS, density altitude, wind, fuel, descent, time, and aviation conversions.

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