Length to Beam Ratio Calculator

Calculate and analyze your boat's length to beam ratio for performance characteristics.

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Understanding the Results

  • Ratio < 2.5: Wide, stable hull suitable for displacement boats
  • Ratio 2.5-4: Moderate, balanced performance
  • Ratio > 4: Narrow hull optimized for speed

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Hull speed, design ratios, prop sizing and stability. Standard formulas, done right. From A$24.99 (approx. US$15).

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