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.

Headwind component (kt)

Headwind component along the course; positive is a headwind, negative a tailwind.

Crosswind component (kt)

Crosswind component across the course; positive is from the right, negative from the left.

Recover the relative wind direction from headwind and crosswind components. 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]

Wind direction (°)

Relative wind direction in degrees clockwise from the course, normalized to zero through 360.

• 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.

• Wind Decomposition Calculator

  Decompose a wind relative to the course into headwind and crosswind components using headwindComponentKt = windSpeedKt * cos(angle) and crosswindComponentKt = windSpeedKt * sin(angle).

• Quartering Wind Component

  Resolve reported wind-from direction and speed against a runway heading. Positive headwind means wind from ahead; a negative value is a tailwind. Signed crosswind is relative to the heading and should be interpreted with local runway convention.

• Groundspeed Corrected Calculator

  Compute ground speed from true airspeed with signed headwind and crosswind components.