Crosswind calculator
Enter the runway and wind to see the crosswind and headwind components instantly. The result URL can be shared as is.
Result
- Headwind component
- Crosswind component
- Wind
- Crosswind
- 7.5 kt from the left
- Headwind
- 13.0 kt
How it is calculated
With θ as the angle between the runway heading and the wind direction, the crosswind component is wind speed × sin θ and the headwind component is wind speed × cos θ. If there are gusts, do the same with the gust value and plan for the worse of the two.
Winds from ATIS and the tower are magnetic; winds in METAR and TAF are true. Runway numbers are magnetic, so convert METAR winds with the magnetic variation (“East is least, West is best”).