Free Navigation Tool
Nautical Navigation Calculator
Calculate true, magnetic, and compass courses. Solve current triangles, compute leeway, SOG/COG, distance, and ETA - essential for passage planning.
Free to use
No signup required
Instant results
Course Input
°
°
East = positive (+), West = negative (-)
°
Also in the ClearShip app: Navigation Calculator
Works offline on board where there is no signal, next to the anchor alarm and your boat's maintenance tasks.
More about the app
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