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.

Runway heading (deg)

Required number input.

Wind-from direction (deg)

Required number input.

Wind speed (kt)

Required number input.

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. 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]

Headwind Kt

The resulting headwind kt returned as a number.

Crosswind Kt

The resulting crosswind kt returned as a number.

• 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.

• Crosswind Takeoff Check

  Resolve wind speed into an absolute crosswind component relative to runway heading and compare it with a user-supplied aircraft or pilot limit. This checks only the wind component, not runway condition or takeoff performance.

• Total Wind Component Calculator

  Combine signed headwind and crosswind components into the total wind magnitude.

• Groundspeed Corrected Calculator

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