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Turning Radius Calculator

Estimate your boat's turning radius and maneuverability

Quick Samples
Try these common configurations to get started

30ft Sailboat

Full keel, large rudder

25ft Powerboat

Outboard or I/O

45ft Trawler

Single-screw displacement hull

Hull Dimensions
Enter your boat's principal dimensions
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About This Tool
This calculator provides an estimate of a boat's turning radius and other maneuvering characteristics based on its dimensions and type. These figures are crucial for safe handling in tight quarters.

Key Concepts:

Turning Radius: The tightest circle a boat can make.
Advance: The forward distance covered in a 90° turn.
Transfer: The sideways distance covered in a 90° turn.
Tactical Diameter: The width of a 180° turn.
Frequently Asked Questions

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