Crosswind Calculator: Calculate Side Wind for Safe Landings

Use this crosswind calculator to easily determine the component of the wind that is blowing perpendicular to your direction of travel.

How the Crosswind Calculator Works

The crosswind calculator is a tool that pilots use to determine the components of the wind relative to the direction they are traveling on the runway. It uses three pieces of information: the runway heading, the wind direction, and the wind speed.

How to Use the Calculator

  1. Enter the heading of the runway in degrees. This is the direction the nose of the aircraft is pointing when lined up for takeoff or landing.
  2. Enter the wind direction in degrees. This is the direction from which the wind is coming.
  3. Enter the wind’s speed in knots.
  4. Click the “Calculate” button to get your results.
  5. The calculator will display crosswind and headwind components in knots.

The Calculation

The calculator first determines the angle between the wind direction and the runway heading. Using this angle, it calculates the crosswind component by multiplying the wind speed with the sine of the angle difference. For the headwind component, it multiplies the wind speed with the cosine of the angle difference.

Limitations of the Calculator

This calculator assumes that the wind direction is constant and that the wind has no vertical component (is not gusting up or down). Additionally, it provides a simple linear approximation and does not account for more complex factors such as changes in wind speed with altitude or terrain effects.

Other Resources and Tools