Download over 500 Boat PlansDownload Now

Sail Area Calculator

Calculate total sail area and performance ratios

Quick Samples
Try these common configurations to get started

Classic Cruiser (32ft)

Traditional cruising sailboat

Racing Yacht (40ft)

Performance racing sailboat

Catboat (24ft)

Single sail configuration

Hull Dimensions
Enter your boat's principal dimensions

feet above boom

feet

feet (0 for catboat)

feet (0 for catboat)

pounds

Download 500+ Boat Plans
About This Tool
The Sail Area Calculator is a crucial tool for sailors, boat designers, and builders. It helps determine a boat's potential performance by calculating the total area of its sails and comparing it to the boat's displacement. This provides key insights into how a boat will handle in different wind conditions and its overall speed potential.

Key Concepts:

Sail Area (SA): Total area of working sails (main + jib)
Displacement (D): The weight of the boat
SA/D Ratio: Power-to-weight ratio for a sailboat
Center of Effort (CE): The focal point of wind pressure on the sails
Frequently Asked Questions

Download 500+ Boat Plans
Get access to a comprehensive library of boat plans and tutorials.

"My Boat Plans" is a collection of over 500 boat plans, from simple dinghies to larger cruisers. It includes step-by-step guides, video tutorials, and more.

Download Now