E6B Flight Computer CFI Pilot vs Aviation Calculator

E6B Flight Computer is the essential aviation calculator for student pilots, CFIs, and cockpit professionals. Built for PPL checkrides, cross country planning, and everyday flight operations — all offline, no internet required. AVIATION CALCULATORS 22 precision calculators covering every phase of flight: Wind & Navigation — Wind correction angle, heading & ground speed, crosswind & headwind components, course & distance between coordinates. Speed & Altitude — True airspeed (TAS), calibrated airspeed (CAS), density altitude, pressure altitude, true altitude, and cloud base estimation using ICAO standard atmosphere formulas. Fuel — Fuel required, endurance, point of no return, and equivalent still air distance. Performance — Weight & Balance with interactive CG envelope chart, top of descent, climb/descent gradient, and percent MAC. Time — Leg time, ETA calculator, and time/speed/distance solver. WEIGHT & BALANCE WITH ENVELOPE CHART Add crew, passengers, fuel, and baggage. The app computes total weight, total moment, and CG position — and plots it live on an interactive envelope chart. The tool every CFI recommends. UNIT CONVERSIONS 9 bidirectional converters: Temperature, Distance (NM/SM/KM), Speed (kt/mph/kph), Altitude (ft/m), Pressure (inHg/hPa), Weight (lb/kg), Volume (gal/L), Avgas weight, and Jet-A weight. COCKPIT CLOCKS & TIMERS Three simultaneous clocks — Zulu (UTC), Local, and Home timezone. Countdown timer with alarm, stopwatch with lap times for leg tracking. HOME SCREEN WIDGETS - Zulu Clock widget — always-on UTC time - Density Altitude widget — current conditions at a glance - Quick Converter widget LIVE ACTIVITY Flight timer countdown on your Lock Screen and Dynamic Island — no unlock needed. WORKS COMPLETELY OFFLINE No internet, no account, no server. Every formula runs on-device using pure ICAO Standard Atmosphere calculations. KEY FEATURES • 22 aviation calculators — wind, altitude, fuel, W&B, time • Interactive W&B envelope chart • Zulu / Local / Home clocks • Countdown timer & stopwatch with laps • Bidirectional unit conversions (NM, kt, inHg, Avgas, Jet-A) • Live Activity on Lock Screen & Dynamic Island • Home Screen widgets • Fully offline — no internet required • Built for PPL, CPL, CFI, and cockpit professionals SUBSCRIPTION INFORMATION Access to E6B Flight Computer requires an active subscription. All features — including calculators, W&B chart, conversions, timers, and widgets — are unlocked with a subscription. Subscription options are presented within the app. Payment is charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription in your Apple ID account settings after purchase. Privacy Policy: https://github.com/MAAlsaleh0/E6B_Legal/blob/main/privacy-policy.md Terms of Use: https://github.com/MAAlsaleh0/E6B_Legal/blob/main/terms-of-use.md

Aviation Calculator puts everyday flight calculations behind dedicated keys, with the feel of a familiar pocket calculator. Designed for student and private pilots, it brings wind, navigation, fuel and performance calculations together. FLIGHT KEYS AT YOUR FINGERTIPS Calculate crosswind and gust components, wind correction, heading, groundspeed, time en route, fuel requirements and density altitude. Explore the function library, weight-and-balance tools and unit converter. PILOT TOOLS Save aircraft profiles and enter loading stations and CG envelope data from your aircraft documentation. Explore direct, parallel and teardrop holding entries with colored sectors and an animated aircraft. Check Zulu/UTC and local clocks, use a stopwatch or countdown, and calculate durations. BEYOND THE BASICS Plan a descent, convert climb gradients, explore turn performance, estimate still-air glide range, find a point of no return or equal-time point, and interpolate between chart values. UNDERSTAND THE RESULT See units beside inputs. Load clearly marked examples. Read formulas, sources and assumptions. Invalid or impossible inputs produce an explanation. YOUR PREFERRED UNITS Choose knots or miles per hour, US gallons or liters, and 0–6 decimal places in Settings. Display precision does not round the underlying calculation values. YOUR WORK, ON YOUR DEVICE Pin favorite functions and revisit saved calculations. Use Siri and Shortcuts for time en route, fuel required, crosswind, density altitude and top of descent with active access. BUILT FOR iPHONE, iPAD AND MAC Calculator keys adapt to compact displays. A wide window keeps the function library beside your work. Calculations work offline during your trial or after unlocking. No developer account, advertising or tracking. 30 DAYS FREE. THEN $9.99 ONCE. Activate the free 30-day Trial with Apple to try all features. After 30 days, a one-time US $9.99 purchase is required to continue calculating. Local App Store pricing may vary. No subscription. No automatic charge. Saved results stay readable. Internet is needed to activate, purchase or restore; use the same Apple Account to restore access. Aviation Calculator is a planning and training aid. Verify results using approved aircraft documents and current conditions. Approximate calculations and diagrams are labeled. Aircraft performance charts, approved CG envelope data, live weather and regulatory decisions are not supplied.