MTMasterTool

Crosswind Component Calculator

Estimate crosswind component from pilot-entered data.

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What this tool does

Estimate crosswind component from pilot-entered data. Use the same true/magnetic reference for both headings; gusts and demonstrated crosswind limitations require separate assessment.

How to use the Crosswind Component Calculator

  1. Enter or select runway heading (degrees true).
  2. Enter or select wind from direction (degrees true).
  3. Enter or select wind speed (knots).
  4. Read the calculated result; change any measurement to compare alternatives.

Formula

crosswind=wind speed×sin(wind direction−runway heading); headwind=wind speed×cos(difference)
runway
Runway heading (degrees true)
direction
Wind FROM direction (degrees true)
speed
Wind speed (knots)

Use the same true/magnetic reference for both headings; gusts and demonstrated crosswind limitations require separate assessment.

Worked example

For crosswind component calculator, the following measurements illustrate the exact method: Runway heading (degrees true): 180; Wind FROM direction (degrees true): 220; Wind speed (knots): 15.

Inputs

  • Runway heading (degrees true)180
  • Wind FROM direction (degrees true)220
  • Wind speed (knots)15

Result

  • Crosswind component (knots, positive from right)9.64
  • Headwind component (knots, negative tailwind)11.49

Results explained

Crosswind component (knots, positive from right)
Crosswind component (knots, positive from right) from the formula above. Use the same true/magnetic reference for both headings; gusts and demonstrated crosswind limitations require separate assessment.
Headwind component (knots, negative tailwind)
Headwind component (knots, negative tailwind) from the formula above. Use the same true/magnetic reference for both headings; gusts and demonstrated crosswind limitations require separate assessment.

Frequently asked questions

crosswind=wind speed×sin(wind direction−runway heading); headwind=wind speed×cos(difference)

Use the same true/magnetic reference for both headings; gusts and demonstrated crosswind limitations require separate assessment.

No. Verify every result against the aircraft's official Pilot's Operating Handbook, current weather and official flight-planning information before flight.

Use current aircraft-specific records, approved POH data and official weather. Generic defaults are not approved aircraft limits.

No. You must supply current verified conditions; calculations are entirely local.