What is a rod (US survey)?

A rod (US survey), also known as a pole or perch, is a traditional US unit of length exactly equal to 16.5 US survey feet, used mainly in land surveying and legal property descriptions.

How long is a UK nautical mile?

The UK nautical mile (NM (UK)) is exactly 6,080 feet or 1,853.184 metres, defined historically as the Admiralty nautical mile, slightly longer than the international nautical mile.

Why convert rod (US survey) to UK nautical mile?

This conversion helps interpret or reconcile legacy land measurements with older UK maritime distances, supporting historical research and legal document analysis.

Convert Rod (US survey) to Nautical Mile (UK) Online

Easily convert length measurements from rod (US survey) units to the UK nautical mile (NM (UK)) using our user-friendly online tool. Perfect for historical surveying and maritime research.

Rod (US survey) [rd]

Nautical mile (UK) [NM (UK)]

Please check your input. It must be a valid numeric value.

Rod (US survey) [rd] to Nautical mile (UK) [NM (UK)] Conversion Table

Rod (US survey) [rd]	Nautical mile (UK) [NM (UK)]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Rod (US survey) [rd] to Nautical mile (UK) [NM (UK)] Conversion Table
Rod (US survey) [rd]	Nautical mile (UK) [NM (UK)]

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What Is This Tool?

This tool allows you to convert length measurements from rod (US survey), a traditional US surveying unit, into the UK nautical mile, historically used in maritime navigation. It helps reconcile legacy land and maritime measurements by providing straightforward conversions between these historical units.

How to Use This Tool?

Enter the length value in rods (US survey) into the input field
Select rod (US survey) as the unit to convert from
Choose the UK nautical mile (NM (UK)) as the conversion target unit
Click the convert button to see the equivalent length in nautical miles (UK)
Use the results to interpret or reconcile historical survey and navigation data

Key Features

Converts rod (US survey) length into UK nautical miles accurately based on historical definitions
Supports legacy measurement interpretation for land surveying and maritime records
Browser-based and easy to use without installation
Provides clear conversion results using established formulas
Ideal for comparing historical surveying data with maritime navigation distances

Examples

10 rods (US survey) convert to approximately 0.027138212 nautical miles (UK)
100 rods (US survey) convert to about 0.27138212 nautical miles (UK)

Common Use Cases

Analyzing historical US land survey and deed measurements involving rods
Interpreting distances on old UK Admiralty maritime charts and navigation records
Converting legacy survey maps or plats for comparison with marine navigation units
Reconciling historical property boundaries with nautical distance references
Supporting maritime history research through unit conversions in legacy documents

Tips & Best Practices

Confirm the unit definitions used in your source documents before converting
Be mindful of the slightly different length definitions for US survey foot and UK nautical mile
Use this tool primarily for historical or specialized measurement conversions
Cross-check results when mixing with modern metric or international units
Keep track of units when integrating legacy data into current systems

Limitations

Rod (US survey) is based on the US survey foot, which may cause slight discrepancies when converted to other unit systems
The UK nautical mile differs marginally from the international nautical mile, so direct comparisons require caution
These units are mostly historical and not commonly used in modern applications
Modern surveying and navigation often prefer metric units, limiting practical current use
Conversions assume legacy definitions and may not reflect contemporary international standards

Frequently Asked Questions

What is a rod (US survey)?: A rod (US survey), also known as a pole or perch, is a traditional US unit of length exactly equal to 16.5 US survey feet, used mainly in land surveying and legal property descriptions.
How long is a UK nautical mile?: The UK nautical mile (NM (UK)) is exactly 6,080 feet or 1,853.184 metres, defined historically as the Admiralty nautical mile, slightly longer than the international nautical mile.
Why convert rod (US survey) to UK nautical mile?: This conversion helps interpret or reconcile legacy land measurements with older UK maritime distances, supporting historical research and legal document analysis.

Key Terminology

Rod (US survey): A traditional US surveying unit of length equal to exactly 16.5 US survey feet, used for land measurement and legal boundaries.
UK Nautical Mile (NM (UK)): A historical UK maritime unit exactly equal to 6,080 feet or 1,853.184 metres, known as the Admiralty nautical mile.
US Survey Foot: A foot measurement used in US surveying that differs slightly from the international foot, affecting rod length calculations.

Quick Knowledge Check

What is the exact length of one rod (US survey)?

Approximately 5.02921 metres

Exactly 16.5 US survey feet

Exactly 6,080 feet

Which unit is slightly longer than the international nautical mile?

Rod (US survey)

UK nautical mile (NM (UK))

US survey foot

What is a common use of converting rod (US survey) to UK nautical mile?

Modern construction measurements

Historical land surveying and maritime navigation reconciliation

International aviation distance tracking

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