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Heeling Moment Calculator

Calculate the heeling force on your sailboat and estimate its angle of heel and stability

Quick Samples
Try these common configurations to get started

30ft Cruising Sloop

40ft Racing Yacht

25ft Daysailer

Hull Dimensions
Enter your boat's principal dimensions
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About This Tool
The Heeling Moment Calculator estimates the force that causes a sailboat to heel over in a given wind speed. It compares this heeling force to the boat's 'righting moment'—its inherent ability to stay upright—to predict the angle of heel. Understanding this balance is fundamental to assessing a boat's stability, performance, and safety.

Key Concepts:

Heeling Moment: The rotational force from the sails that makes the boat lean.
Righting Moment: The counter-force from the hull and ballast that makes the boat want to stay upright.
Heel Angle: The angle of lean where the heeling moment and righting moment are in equilibrium.
Stability: A boat's resistance to heeling and its ability to return to an upright position.
Frequently Asked Questions

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