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Wind Calculator

Calculate crosswind and headwind/tailwind components

Pre-flightApproach & landingDiversion planning

Your crosswind component decides whether you land or go around.

A 15-knot wind at 45° to your runway means 10.6 kt headwind and 10.6 kt crosswind. Miss that calculation and you may exceed your aircraft's demonstrated crosswind limit — or flare into a drift that rolls a wheel off the edge.

Input Values

Runway 27 = 270 degrees
degrees
Direction wind is coming FROM
degrees
knots
knots
Enter values above to see results

Wind Component Tips

Headwind: Headwind: Reduces ground speed but shortens takeoff/landing distance. Generally favorable for takeoff and landing.

Tailwind: Tailwind: Increases ground speed but lengthens takeoff/landing distance. Most aircraft POH limit tailwind to 10 knots for takeoff/landing.

Crosswind: Crosswind: Requires correction during takeoff, landing, and taxi. Typical light aircraft limits are 15-20 knots demonstrated crosswind.

Wind Component Formulas
HW = V × cos(θ) XW = V × sin(θ)
HW— Headwind component (kt)
XW— Crosswind component (kt)
V— Wind speed (kt)
θ— Angle between wind direction and runway heading

How do you calculate crosswind and headwind components?