Bridge Calc: Draft & Ballast

Bridge Calc: Draft & Ballast

Maritime tools for officers

0 ratings

Archived App (Last seen on 18 Jul 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
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Details

  • Released
  • Updated
  • June 16, 2025
  • September 23, 2025

Features

Bridge Calc: Draft & Ballast screenshot #1 for iPhone
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About

Bridge Calculators is an offline tool designed for maritime professionals. It includes a set of calculators commonly used by deck officers, chief mates, and shipmasters for cargo handling, draft management, stability assessment, and onboard calculations. Available modules: - Draft Survey Calculator. Manual and automatic calculation of loaded or discharged cargo based on draft readings and vessel data. - Ballast Calculator Calculates ballast water quantity in tanks (manual or automatic). Allows vessel, tank, and tank table setup. Provides fast results based on tank geometry and soundings. - Stowage Plan Calculator Automatic cargo distribution by holds using cargo stowage factor. Includes port entry/exit remarks for arrival and departure planning. - Cargo Trimming Calculator Final trimming calculator at the end of loading. Calculates cargo quantity required to reach even keel or target trim. - Unit Converter Converts various maritime units including stowage factor, volume, length, speed, and temperature. - List Calculator Calculates vessel heel (list) in degrees for navigational assessment. - Humidity Calculator Calculates relative humidity based on temperature and dew point. - Squat & UKC Calculator Assesses under keel clearance (UKC) and squat effect based on speed and draft. - Draft & GM Change Calculator Calculates changes in draft and metacentric height (GM) when transitioning between waters of different density. Additional features: - Offline operation – all calculators work without internet access. - Google Drive backup for Draft Survey and Ballast Calculator, allowing secure data storage and recovery on another device. - Light and dark themes for comfortable use in various working conditions. - Clean and practical user interface optimized for onboard use. The application is designed to assist with real-world vessel operations and enhance efficiency during cargo and stability-related tasks. Suitable for commercial vessels of all types
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What's New in Bridge Calc

1.0.1

September 23, 2025

Ver. 1.0.1 1. Updated contact details for better communication 2. Improved in-app message submission form for faster and easier support Stay tuned for more improvements!

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