E6B Flight Computer Online — Whiz Wheel Slide Rule

A free online E6B flight computer: the circular slide rule (the "whiz wheel" or whizz wheel) on the front and the wind face on the back. Drag the inner disc like a paper E6B, or type values into the calculators.

What it solves

• Time, speed and distance with the rate index
• Fuel burn in gallons per hour, endurance and the 14 CFR 91.151 VFR fuel reserve
• Pressure altitude from the altimeter setting in inHg, density altitude and true airspeed
• Wind triangle: true heading, groundspeed and wind correction angle; crosswind components

Includes a how-to guide, FAA knowledge test flight computer drills and a free Chrome and Edge extension. Read the E6B guide · Home

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