What Is This Tool?
This tool allows you to convert lengths from the Roman actus, an ancient unit used in land surveying, to the UK nautical mile, historically employed in British maritime navigation. It aids in interpreting and comparing historical land and sea measurements.
How to Use This Tool?
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Input the length value measured in Roman actus
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Select Roman actus as the starting unit
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Choose nautical mile (UK) [NM (UK)] as the target unit
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Click convert to get the equivalent length in UK nautical miles
Key Features
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Converts from Roman actus to UK nautical mile accurately using historical conversion rates
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Supports analysis in archaeology, historical mapping, and maritime history
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Browser-based and easy to use for converting ancient and historical units
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Provides relevant conversion examples to assist understanding
Examples
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5 Roman actus equals approximately 0.0957 nautical miles (UK)
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10 Roman actus equals approximately 0.1914 nautical miles (UK)
Common Use Cases
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Translating Roman land survey measurements into maritime distance units
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Converting historic UK Admiralty navigation records to metric units
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Interpreting legacy maritime and land documents in archaeological or legal research
Tips & Best Practices
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Use this conversion primarily for historical or archaeological study
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Be aware of potential variations due to historic measurement differences
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Consult additional references when precision is critical for legal or scientific work
Limitations
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Roman actus is an approximate ancient unit and may vary slightly
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UK nautical mile is historical and differs from the international nautical mile
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Conversion accuracy is limited due to changes in measurement standards over time
Frequently Asked Questions
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What is a Roman actus?
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The Roman actus is an ancient unit of length equal to about 35.5 metres, used in Roman land measurement and serving also to define areas.
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How long is a UK nautical mile?
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The UK nautical mile, also known as the Admiralty nautical mile, is defined exactly as 6,080 feet or 1,853.184 metres, slightly longer than the international nautical mile.
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Why convert Roman actus to UK nautical miles?
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This conversion helps interpret historical land measurements alongside UK maritime distances, useful in archaeology, historical cartography, and maritime history.
Key Terminology
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Roman actus
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An ancient Roman length unit approximately equal to 35.5 metres, used in land measurement and defining areas.
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Nautical mile (UK) [NM (UK)]
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A historic UK maritime distance unit defined as exactly 6,080 feet or 1,853.184 metres, also called the Admiralty nautical mile.
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Actus quadratus
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A square with sides each one Roman actus long, used to define an area unit in Roman land surveying.