Physics and Engineering
Crosswind Calculator
Crosswind Calculator resolve wind speed into crosswind and headwind or tailwind components relative to a runway or travel heading.
Physics and Engineering
Crosswind Calculator
Resolve wind speed into crosswind and headwind or tailwind components relative to a runway or travel heading.
Formula
Crosswind = wind speed x sin(relative angle); headwind = wind speed x cos(relative angle).
About the Crosswind Calculator
Resolve wind speed into crosswind and headwind or tailwind components relative to a runway or travel heading.
How the Crosswind Calculator Works
The smallest signed difference between wind-from direction and heading is converted to radians and resolved into perpendicular and parallel components.
Formula
Crosswind = wind speed x sin(relative angle); headwind = wind speed x cos(relative angle).
The calculation runs in your browser. Values are validated for required ranges, compatible units, and method-specific restrictions before results are displayed.
Required Inputs
- Wind speed (required).
- Wind-from direction (required) - enter in degrees.
- Runway or travel heading (required) - enter in degrees.
- Speed unit label (optional).
Results Reported
The result panel reports the final answer and the intermediate quantities needed to check the calculation:
- Signed crosswind component
- Crosswind magnitude
- Crosswind side
- Signed headwind component
- Headwind or tailwind
- Relative wind angle (degrees)
- Speed unit used
Crosswind Calculator Example
Select Example Data in the calculator to load this reproducible input set:
| Input | Example value |
|---|---|
| Wind speed | 20 |
| Wind-from direction | 240 degrees |
| Runway or travel heading | 180 degrees |
| Speed unit label | kt |
How to Use the Calculator
- Confirm that the calculator title and formula match the quantity you need.
- Enter every required value using the unit shown with its field.
- Select Example Data to inspect a valid input set, or enter your own values and select Calculate.
- Review all reported values and the displayed formula before using the answer.
- Use Copy Result or Download CSV when you need a reusable record.
Accuracy and Limitations
Use consistent true or magnetic directions and wind-from convention. Gusts, terrain, runway variation, vehicle motion, and operational limits require current authoritative data.
Keep units consistent, use measurements that represent the actual situation, retain full precision during the calculation, and round only the final answer. Professional decisions may require current official rules, field measurements, laboratory methods, or specialist review.
Frequently Asked Questions
What does the Crosswind Calculator calculate?
Resolve wind speed into crosswind and headwind or tailwind components relative to a runway or travel heading.
Which formula does the Crosswind Calculator use?
Crosswind = wind speed x sin(relative angle); headwind = wind speed x cos(relative angle). The smallest signed difference between wind-from direction and heading is converted to radians and resolved into perpendicular and parallel components.
What should I check before using the Crosswind Calculator result?
Use consistent true or magnetic directions and wind-from convention. Gusts, terrain, runway variation, vehicle motion, and operational limits require current authoritative data.