What Is This Tool?
This tool converts volume measurements from ton register, a maritime unit expressing a ship's internal capacity, to tun, a traditional English unit for large liquid casks. It is designed to aid understanding and translating historical volume data.
How to Use This Tool?
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Enter the volume value in ton register units you wish to convert.
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Select ton register as the input unit and tun as the output unit.
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Click convert to see the corresponding tun volume.
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Use the converted result to assist with historical or archival volume analysis.
Key Features
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Converts ton register volumes into tun units using established conversion rates.
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Supports historical and archival maritime volume interpretations.
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Facilitates translation of old liquid volume measures for brewing, distilling, and trade research.
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Browser-based and easy to use for quick unit conversion tasks.
Examples
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Convert 5 ton register: 5 × 2.9684601113 = 14.8423005565 tun
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Convert 10 ton register: 10 × 2.9684601113 = 29.684601113 tun
Common Use Cases
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Interpreting internal ship volumes recorded as gross or net register tonnage on historical documents.
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Calculating port fees or canal dues based on register tons in archival shipping records.
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Estimating the volume of cargo holds for legacy vessel analysis.
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Describing large wine or ale cask capacities in historical inventories and shipping logs.
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Converting old brewery or distillery volume measures to modern terms for archival projects.
Tips & Best Practices
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Ensure you understand the historical context since ton register and tun sizes may differ by source or region.
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Use this conversion mainly for historical or comparative work rather than precise modern measurements.
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Cross-reference converted volumes with original documentation for validation.
Limitations
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Tun unit sizes have varied regionally and historically, potentially causing variability in conversion accuracy.
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Ton register has been largely replaced by modern tonnage conventions and may not match current standards.
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Conversions are approximate and best suited for historical or comparative analyses, not precise calculations.
Frequently Asked Questions
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What is a ton register?
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A ton register is a maritime volume unit equal to 100 cubic feet, historically used to express a ship’s internal capacity as gross or net register tonnage.
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What is a tun?
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A tun is a traditional English liquid volume unit for large casks, historically defined as 252 wine gallons, roughly 954 litres.
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Why convert from ton register to tun?
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Converting from ton register to tun helps translate historical ship volumes into traditional liquid cask measures for archival, research, or trade analysis.
Key Terminology
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Ton register [ton reg]
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A maritime unit of volume equal to 100 cubic feet, used historically to express a ship’s internal capacity.
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Tun
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A traditional English unit of liquid volume for large casks, historically defined as 252 wine gallons.
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Gross or net register tonnage
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Historical measures of a ship’s internal volume expressed in register tons, used for commercial and regulatory purposes.