E6B

E6B combines a flight computer with aircraft weight and balance tools for training and flight planning.

FIND YOUR CALCULATOR
Search by calculator name, category or input such as TAS. Tap the star beside a calculator to keep it in Favorites.

FREE CALCULATORS
• Time, speed and distance
• Fuel required for a leg, including reserve
• Unit conversions for distance, speed, pressure, temperature and fuel weight

PRO — ONE-TIME PURCHASE
• Weight and balance with saved aircraft profiles, editable stations, a center-of-gravity envelope, takeoff and landing loads, and PDF export
• Pressure, density and cold-corrected altitude
• Calibrated and true airspeed, equivalent airspeed, Mach and speed of sound
• Wind triangle, unknown wind, crosswind and headwind, heading corrections and off-course correction
• Endurance, range, descent, climb, glide, holding entry, turn rate and radius
• Performance interpolation, cloud base and freezing level

BUILT FOR CLEAR INPUT
Enter decimals and negative values with the dedicated calculation keypad. Choose units such as hPa, inHg, feet, metres, kilograms, pounds, litres and gallons. Units appear beside values, and shared inputs carry between relevant calculators.

On wide tablets, view results beside the input fields and keypad. Your current input stays intact when the layout changes. Result cards explain the calculation and show its source.

Calculations work offline. Purchasing and restoring Pro require a store connection. There are no advertisements or subscriptions. One purchase unlocks the Pro calculators.

This app is a training and planning aid. Check your aircraft's POH/AFM and official sources before making flight decisions.

Recent changes:
• Search calculators by name, category or input.
• Add and remove favorites with a visible star.
• View results beside inputs on wide tablets while preserving entries during rotation.
• Clearer purchase information and improved purchase restoration.