Aviation calculations, made clear.
Check runway wind components, plan fuel and route points, and work through the wind triangle, or estimate pressure and density altitude. Enter your own figures and see both the result and the method behind it.
Crosswind calculator
Choose an airport runway or enter a heading, then see crosswind, headwind or tailwind, and gust components.
Open crosswind calculatorChoose a calculator.
Crosswind
Use this aviation wind calculator to resolve steady and gust wind into crosswind and headwind or tailwind.
Crosswind component
Calculate lateral wind, then use the interactive angle chart to see how the component changes.
Headwind component
Find the wind working with—or against—your runway.
True airspeed
Turn air density into a clearer picture of your airspeed.
Ground speed
Know your speed over the ground, with wind accounted for.
Wind correction angle
Find the heading that keeps you on course.
Fuel burn
Calculate trip, reserve and taxi fuel from flight time and hourly burn.
Point of no return
Find the farthest modeled point from which you can return within usable endurance.
Point of equal time
Find where the time to return equals the time to continue to destination.
Pressure altitude
Find the standard-pressure altitude and compare QNH, QNE and QFE.
Density altitude
Estimate the effect of pressure and temperature on air density.
Use the number with context.
Every tool shows its inputs, formula, worked examples and limitations. Runway selections use published designators as approximate magnetic headings in 10° steps; always verify current official information.