What is the UK nautical mile defined as?

It is defined as exactly 6,080 feet or 1,853.184 metres and is slightly longer than the international nautical mile.

What is a barleycorn?

A barleycorn is a traditional British unit of length equal to one third of an inch, historically based on the length of a grain of barley.

When would I need to convert from NM (UK) to barleycorn?

This conversion is useful when working with historical maritime charts, legal documents, or traditional British measurements like shoe sizing.

How to Convert from Nautical mile (UK) [NM (UK)] to Barleycorn?

Learn how to convert distances from the UK nautical mile (NM UK) to barleycorns using this clear and easy-to-use unit conversion guide. Understand the historical context and practical applications behind this conversion.

Nautical mile (UK) [NM (UK)]

Barleycorn

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

Nautical mile (UK) [NM (UK)] to Barleycorn Conversion Table

Nautical mile (UK) [NM (UK)]	Barleycorn

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.

Nautical mile (UK) [NM (UK)] to Barleycorn Conversion Table
Nautical mile (UK) [NM (UK)]	Barleycorn

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What Is This Tool?

This converter transforms lengths from the UK nautical mile, historically defined as exactly 6,080 feet or 1,853.184 metres, into barleycorns, a traditional British unit roughly equal to one third of an inch. It helps bridge historical maritime measurements with older British length units.

How to Use This Tool?

Enter the value in nautical miles (UK) you wish to convert.
Select 'nautical mile (UK) [NM (UK)]' as the input unit.
Choose 'barleycorn' as the output unit.
Click convert to see the equivalent length in barleycorns.

Key Features

Converts UK nautical miles to barleycorns using a precise established rate.
Useful for interpreting historical maritime and British traditional measurements.
Browser-based and simple to operate with no installation needed.
Supports legacy navigation and antique document research.

Examples

Converting 2 NM (UK) yields 437,760 barleycorns.
A half NM (UK) equals 109,440 barleycorns.

Common Use Cases

Interpreting distances on historical UK Admiralty navigation charts.
Converting legacy maritime or legal documents to traditional British units.
Restoring or comparing older navigation tools or museum artifacts.
Understanding British shoe sizing where one size increment equals one barleycorn.
Interpreting antique tailoring and craft patterns using pre-metric English units.

Tips & Best Practices

Use this tool when working with historical or legacy maritime records.
Remember that barleycorn is mainly used in historical or traditional contexts.
Verify the unit definitions when dealing with mixed measurement systems.
When precision is critical, consider the natural variability in barleycorn length.

Limitations

Barleycorn is largely historical and not commonly used in modern measurements.
The UK nautical mile is replaced by the international nautical mile in current use.
Definition variability of barleycorn may affect precision.
This tool does not apply to international nautical miles or modern standard units.

Frequently Asked Questions

What is the UK nautical mile defined as?: It is defined as exactly 6,080 feet or 1,853.184 metres and is slightly longer than the international nautical mile.
What is a barleycorn?: A barleycorn is a traditional British unit of length equal to one third of an inch, historically based on the length of a grain of barley.
When would I need to convert from NM (UK) to barleycorn?: This conversion is useful when working with historical maritime charts, legal documents, or traditional British measurements like shoe sizing.

Key Terminology

Nautical mile (UK) [NM (UK)]: A historical UK unit of length defined as exactly 6,080 feet or 1,853.184 metres, used primarily in older maritime contexts.
Barleycorn: A historic British length unit equal to one third of an inch, originally based on the size of a grain of barley.

Quick Knowledge Check

Which unit is longer: the UK nautical mile or the international nautical mile?

The UK nautical mile

The international nautical mile

They are the same length

What traditional measurement does the barleycorn correspond to?

One inch

One third of an inch

Half an inch

Who might use the conversion from NM (UK) to barleycorn?

Maritime historians

Modern sailors

Engineers designing spacecraft

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