E6B Aviation Calculator: GoFly

The E6B that finally makes sense. Fast, accurate, and built to feel good in your hands.

No more spinning a plastic wheel and hoping. Type your numbers, get a precise answer, and tap once to see exactly how it got there. Every mode is dialed in and easy to use, whether you're planning a cross-country or just checking a crosswind before you taxi.

Live Wind Triangle

• A cockpit-style instrument that redraws heading, track, and wind as you type
• View the crab angle, not just the number for it

Show the Work

• Every result opens up into the formula and the values you plugged in
• Expand it when you want to understand it, collapse it when you don't

Core E6B Tools

• True airspeed and density altitude
• Time, speed, distance
• Fuel and endurance
• Crosswind components
• Unit conversions

METAR Decoder

• Pull any airport's live report from the NOAA Aviation Weather Center
• Read it in plain language, line by line

Weight & Balance

• Load your aircraft and see gross weight and CG on the envelope
• Save airplanes as presets so you're not re-entering them

The Small Stuff

• A keypad with the units right on each field, so knots never get mixed up with mph
• Works offline. Every calculation runs on your phone. Only live METARs need a signal.
• No accounts, no analytics, no ads, nothing collected. Your numbers stay on your phone.

Free to try, 5 flights on us. No account, no ads.

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