Use this calculator for flight-planning study or a first-pass cross-check when all inputs describe the same aircraft, atmospheric condition, and phase of flight.

TAS (kt)

True airspeed.

Wind angle (°)

Angle between wind and course; zero is a direct headwind, 180 a tailwind.

Wind speed (kt)

Wind speed.

Compute the wind correction angle needed to hold a course in a known wind. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

WCA (°)

Crab angle to apply into the wind, positive to the right of course.

• Do not use a generic calculator in place of the current aircraft flight manual, approved performance data, operating limitations, NOTAMs, weather, or regulations. Real performance changes with configuration, runway condition, altitude, temperature, wind, loading, and technique.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Cross-check the result against the aircraft flight manual or approved planning system, then apply the required safety margins. Keep signed wind, heading, altitude, speed, and fuel conventions explicit.

• Crab Angle Calculator

  Compute the heading offset into a direct crosswind needed to hold a course.

• Crosswind Component Calculator

  Compute the magnitude of the crosswind component of a wind at an angle to the runway or course.

• Descent Rate Calculator

  Compute the vertical speed needed to hold a descent angle at a given ground speed.