Flight planning math, with every formula shown
Wind, fuel, distance and descent calculators for pilots, dispatchers, engineers, students and hobbyists. Free, fast, and nothing to sign up for.
The panel is live: drag the sliders to solve a wind triangle.
Heading to fly
Ground speed
Correction
Heading Wind Track over ground
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Why trust the numbers
Formulas on the page. Each calculator explains its maths so you can check it.
Private by design. Everything runs in your browser. Nothing you type is sent anywhere.
Honest limits. These are planning aids. Approved aircraft data, weather and NOTAMs always come first.
FAQ
Are these tools free?
Yes. Every calculator is free and runs in your browser.
Can I use them for real flights?
They are training and reference aids. Use approved aircraft data, official weather and NOTAMs for operational decisions.