This calculator has been developed to support naval architects, yacht designers and certification professionals when evaluating multihull reserve buoyancy requirements.

The tool reflects the methodology currently being discussed and applied within the industry for inverted waterline assessments.

To open the web calculator in full screen follow this link.

NEED AN OFFICIAL CALCULATION?

While the calculator provides valuable guidance, certification projects often require independent verification and supporting documentation.
Wijma Marine Consultants can provide:

• Official assessment reports
• Stability calculations
• CE certification support
• ISO compliance reviews
• Independent consultancy

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Disclaimer: This calculation tool is intended as an indicative aid for assessing buoyancy in accordance with ISO/DIS 12217-2. No rights can be derived from the results. The example values shown are illustrative and are not based on any specific, existing vessel. This tool does not replace an official, signed calculation or report issued by Wijma Marine Consultants. The user remains solely responsible for the accuracy and completeness of the data entered. Wijma Marine Consultants accepts no liability for decisions made on the basis of this tool. For an official assessment, please contact Wijma Marine Consultants.