Complete E6B flight computer with 92 aviation functions, conversions, and utilities, including functions that you won't find in any other E6B.

Each function uses the correct scientific formula to ensure accuracy. Other E6B apps rely on rules of thumb that can be up to 10% off. The most comprehensive, accurate, and easiest to use E6B on the App Store.

E6B Functions > Plan Leg
▸ Groundspeed
▸ True Heading
▸ Compass Heading
▸ Leg Time
▸ Distance
▸ Fuel Required
▸ Fuel Flow
▸ Endurance

E6B Functions > Airspeed
▸ Actual TAS
▸ Actual Mach
▸ Plan Mach
▸ Plan TAS
▸ Total Air Temperature

E6B Functions > Wind
▸ Wind Component
▸ Unknown Wind
▸ Wind Correction Angle

E6B Functions > Altitude
▸ Pressure Altitude
▸ Density Altitude
▸ True Altitude

E6B Functions > Climb & Descent
▸ Required descent gradient (percent, degress, ft/nm)
▸ Required descent rate (ft/min)
▸ Top of Descent
▸ Convert between percent, degrees, and ft/nm

Extra Functions > Performance
▸ Rate of turn for angle of bank and airspeed
▸ Turn Radius for angle of bank and airspeed
▸ Required bank angle for standard rate turn
▸ Turn radius for standard rate turn
▸ Hydroplane speed
▸ Load factor in level turn
▸ Pivotal altitude

Extra Functions > Navigation
▸ DME arc - distance along arc
▸ Thunderstorm cell height (from radar tilt and echo distance)

Conversions > Temperature
▸ Celsius
▸ Fahrenheit
▸ Kelvin
▸ Rankine

Conversions > Distance
▸ Statute Miles
▸ Nautical Miles
▸ Kilometers
▸ Meters
▸ Feet

Conversions > Speed
▸ Knots
▸ Miles Per Hour
▸ Kilometers Per Hour
▸ Feet Per Minute
▸ Meters Per Second
▸ Mach @ ISA

Conversions > Pressure
▸ Inches of Mercury
▸ Millibar
▸ Kilopascal
▸ Pascal
▸ Standard Atmosphere
▸ Pounds per Square Inch

Conversions > Fuel
▸ Convert between mass (pounds and kilograms) and volume (gallons and liters) for 100LL, Jet A, Jet B, and Water

Conversions > Weight & Mass
▸ Pounds
▸ Kilograms
▸ Ounces

Conversions > Area
▸ Square Miles
▸ Square Nautical Miles
▸ Square Kilometers
▸ Square Meters
▸ Square Feet

Conversions > Volume
▸ Gallon
▸ Liter
▸ Ounce
▸ Quart
▸ Pint
▸ Cup

Weight & Balance > CG & Moment
▸ Weight
▸ Moment
▸ C.G.

Weight & Balance > C.G. Shift
▸ Amount of weight that must be shifted
▸ Distance the weight is or must be shifted
▸ Distance CG is or must be shifted

Weight & Balance > C.G. % MAC
▸ CG location aft of leading edge of MAC
▸ CG location as a percent of MAC

Time Utilities > Time Calculator
▸ Standard mathematical operations
▸ Convert time

Time Utilities > Flight Log Calculator
▸ Calculate block and flight times in decimal and formatted time
▸ Set standard taxi times in Settings

Time Utilities > Standard Calculator
▸ Standard mathematical operations

Time Utilities > IFR Timer
▸ Countdown timer with audio, visual, and vibrating alerts

▸ Change precision of conversions between zero, one, two, or three decimal places - default is two decimals places
▸ Day/Night modes

What is an E6B?

An E6B flight computer is traditionally an analog device resembling a combination slide rule and slide wheel that performs calculations specific to aviation. For example, an E6B can be used to calculate heading and groundspeed after taking into account forecast winds. An E6B is also used to calculate data used for performance planning such as density altitude. Our version goes beyond the analog E6B and even beyond all other E6B apps by including functionality to calculate time, rate and radius of turns, pivotal altitude (great for flight training use), and more.

What Makes FlightReady E6B The Best Flight Computer

▸ Unparalleled precision - other E6B flight computers use inaccurate rules of thumb
▸ Additional functions - Flight instructors and aviation nerds will appreciate functions such as rate and radius of turn, pivotal altitude, hydroplane speed, and more
▸ Time Calculator - Speeds calculation of flight times when renting aircraft and filling out your logbook

What’s New

Version 1.7.3

Minor fixes relating compatibility with iOS 13
Added in Version 1.7.0

This version is a significant update with lots of new functions that you won't find in any other E6B.
▸ Added Extra Functions menu option with the following new functions:
▹ Rate of turn for angle of bank and airspeed
▹ Turn radius for angle of bank and airspeed
▹ Required bank angle for standard rate turn
▹ Turn radius for standard rate turn
▹ Hydroplane speed
▹ Load factor in level turn
▹ Pivotal altitude
▹ DME arc - distance along arc
▹ Thunderstorm cell height (from radar tilt and echo distance)
▸ Functions > Plan Leg > Heading & Airspeed: Added deviation field
▸ Functions > Plan Leg > Wind: Added wind correction angle function
▸ Functions > Plan Leg > Fuel Consumption: Added lbs/hr and kg/hr units
▸ Weight & Balance: Added kg-mm units
▸ Conversions > Fuel: Added JP-8 fuel
▸ Time Utilities > Flight Log Calculator: Totals now shown in both hh:mm and decimal formats
▸ Settings: Default precision used in Conversions changed to 2 decimal places (e.g., 0.01)
▸ Settings: Added website link and support contact

This is the last version that will support devices running iOS versions older than iOS 12. The next version will require iOS 12 or higher.

Ratings and Reviews

4.7 out of 5
589 Ratings

589 Ratings

ZombieCOD ,

Needs just one thing

I love the app already, I would just appreciate it so much if displayed times could also include seconds, at least as an optional setting.

Recently during training my CFI simulated loss of ILS, VOR and DME during an approach on a simulator session. I know normally you just notify tower and request visual but for the purpose of learning something new he had me continue the approach using an NDB station as reference for how many miles out I was and with calculate the time until I was exactly over the point where you initiate descent. (The NDB is aligned with the runway and yes we still use NDB in my country sadly).

Anyway, seconds are critical when dealing with such short distances and my CFI is not the kind of guy to just accept “1 min” over “1 min 30 seconds”.

Tacopilot ,

Several tools in this app will get used daily

I think this app has everything I need. Tools for figuring top of decent with wind could use tweaking because I would like to be able to put any known variable in and have it give me the unknown (it's possible I needed to dig deeper for one of the other tools). The time calculator will make catching up on my logbook a breeze! For 99c this is a must have from GA to Airline, there are things in this package for all pilots.

Tango2Three ,

Great E6B! Some UI suggestions...

As a student pilot who is almost a PPL this app seems to cover everything I need. I do have some interface suggestions, though: 1.) A tab or enter key would be useful instead of the keyboard hide key. This way I can keep my finger near the bottom of the screen (on a iPhone XR) instead of having to move up and down the screen to move between data entry fields. And 2.) Move the keypad up a few pixels so that one doesn’t accidentally swipe up when using the bottom row of keys.


Aeroapps Technology, LLC
20.3 MB

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like