SailCalc
Sailboat Performance Ratios
$1.99 · Designed for iPad. Not verified for macOS.
Ever wondered how your sailboat really performs? Stop guessing and start calculating. SailCalc is the first and only app that puts powerful, industry-standard sailboat performance ratios right in your pocket.
Perfect for boat shoppers, club racers, and any sailor who loves to geek out on data, SailCalc helps you understand a boat's true potential.
KNOW YOUR BOAT:
Calculate Key Ratios: Instantly find a boat's Hull Speed, Displacement-Length Ratio (DLR), Sail Area-Displacement Ratio (SA/D), Capsize Screening Formula, and more.
Save & Compare: Keep a running list of your favorite boats to easily compare their performance profiles head-to-head.
Simple & Fast: Our clean interface is built for quick data entry at the dock, at home, or at a boat show. No confusing menus, just the numbers you need.
Whether you're deciding on your next boat or want to win the next dockside debate, download SailCalc and become a smarter sailor today.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Knotlog Software LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Knotlog Software LLC
- Size
- 756.7 KB
- Category
- Utilities
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - iPad
Requires iPadOS 18.2 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Knotlog Software, LLC
