FlightReady E6B includes 3D Touch and multi-tasking support, and contains over 80 aviation functions, conversions, and utilities.

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

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

Functions > Wind
▸ Wind Component
▸ Unknown Wind

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

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

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
▸ Day/Night modes

Contact us at with questions and suggestions.

What's New

Version 1.5.2

▸ Bug fixes and improved stability

Please submit feature requests to

Ratings and Reviews

4.7 out of 5

221 Ratings

221 Ratings

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.

Excellent app.

a very iphone user

This is the best aviation calculator from those that I tried so far from the app store. It has a clear and simple user interface with large numeric keyboard, and intuitive menu for selecting functions. It also has a nice selection of functions beyond what you find in a traditional calculator. For example planning of descent rate.

Developer Response

Thank you for the feedback. You can change units when using any function (e.g., Plan Leg) by tapping on the units label (e.g., MPH) then selecting a new unit (e.g., knots). On the issue with true vs magnetic wind, I would need a specific example to address your concern. You can reach me at Thanks! --Ed @ Aeroapps



I've tried most of the others, and this is the best E6B by far. Incredibly easy to use. I like how units can be changed in the function without having to go to the settings.


Aeroapps Technology, LLC
28.1 MB
Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Aeroapps Technology, LLC


  • Family Sharing

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

More By This Developer

You May Also Like