Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Crosswind (kts)
11.6
Headwind (kts, negative = tailwind)
13.8
Wind angle (°)
40
Limit check
Within demonstrated limit
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter runway heading (°).
- 2Enter wind direction (°).
- 3Enter wind speed (kts).
- 4Enter demonstrated crosswind (kts).
- 5Read your crosswind (kts) on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Compare the crosswind component against your aircraft's demonstrated limit before committing to a runway.
Worked example
Using the values the calculator loads with:
Inputs
- Runway heading: 90 °
- Wind direction: 130 °
- Wind speed: 18 kts
- Demonstrated crosswind: 15 kts
Results
- Crosswind (kts): 11.6
- Headwind (kts, negative = tailwind): 13.8
- Wind angle (°): 40
- Limit check: Within demonstrated limit
What each field means
Inputs
- Runway heading (°)
- The runway heading used in the calculation, measured in °. Starts at 90 ° so you have a working example on load. Accepted range: 0–360 °.
- Wind direction (°)
- The wind direction used in the calculation, measured in °. Starts at 130 ° so you have a working example on load. Accepted range: 0–360 °.
- Wind speed (kts)
- The wind speed used in the calculation, measured in kts. Starts at 18 kts so you have a working example on load.
- Demonstrated crosswind (kts)
- The demonstrated crosswind used in the calculation, measured in kts. Starts at 15 kts so you have a working example on load.
Results
- Crosswind (kts)
- Returned as a decimal number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Headwind (kts, negative = tailwind)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Wind angle (°)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Limit check
- Returned as a plain value. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the crosswind component calculator work?
Compare the crosswind component against your aircraft's demonstrated limit before committing to a runway.
What do I need to enter?
4 values: runway heading, wind direction, wind speed, and demonstrated crosswind. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the crosswind (kts) result mean?
It is returned as a decimal number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary.
Who is this tool for?
It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Crosswind Component Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/crosswind-component
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/crosswind-component" target="_blank" rel="noopener">Crosswind Component Calculator — RevenueLab</a> (2026).</p>
Source: [Crosswind Component Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/crosswind-component) (2026).