What is an arpent used for?

An arpent is a historical French unit of length mainly used to describe land measurements like river lot frontages and parcel sizes in regions such as Quebec and Louisiana.

How does the UK nautical mile differ from the international nautical mile?

The UK nautical mile, historically known as the Admiralty nautical mile, is defined as exactly 6,080 feet (1,853.184 metres), making it slightly longer than the international nautical mile of exactly 1,852 metres.

Why convert from arpent to UK nautical mile?

Converting from arpent to UK nautical mile helps interpret historical French land data in terms compatible with UK maritime charts and legal or surveying contexts.

Convert Arpent to Nautical mile (UK) [NM (UK)] – Online Length Unit Converter

Easily convert historical French length unit Arpent to the UK nautical mile (NM UK). Ideal for land, maritime, and historical research conversions.

Arpent

Nautical mile (UK) [NM (UK)]

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

Arpent	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.

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

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What Is This Tool?

This tool enables conversion from arpent, a historical French length unit used in land measurement, to the UK nautical mile (NM UK), a maritime distance unit historically used by the UK Admiralty. It assists users in translating old land units into nautical distances relevant in UK maritime contexts.

How to Use This Tool?

Enter the value in arpents you want to convert.
Select 'arpent' as the source unit and 'nautical mile (UK) [NM (UK)]' as the target unit.
Click the convert button to get the equivalent distance in NM (UK).

Key Features

Converts arpent to UK nautical mile (NM UK) using established historical definitions.
Helpful for land surveying, cadastral map interpretation, and maritime navigation research.
Browser-based and straightforward to use with instant conversion results.
Supports understanding of historical documents from French colonies and UK maritime charts.

Examples

10 arpents equal approximately 0.315789474 NM (UK).
50 arpents convert to about 1.57894737 NM (UK).

Common Use Cases

Translating French colonial land measurements into nautical distances used on UK Admiralty charts.
Reconciling historical cadastral descriptions with maritime navigation records.
Supporting legal and surveying work involving historic land and maritime data.

Tips & Best Practices

Consider local historical context since arpent length varies by region and era.
Be mindful that the UK nautical mile is slightly different from the international standard.
Use the tool for approximate conversions when working with historical documents lacking precision.

Limitations

Arpent length varies depending on region and time period, affecting conversion accuracy.
UK nautical mile differs slightly from the more common international nautical mile.
Historical records may not be precise, so conversions should be treated as estimates.

Frequently Asked Questions

What is an arpent used for?: An arpent is a historical French unit of length mainly used to describe land measurements like river lot frontages and parcel sizes in regions such as Quebec and Louisiana.
How does the UK nautical mile differ from the international nautical mile?: The UK nautical mile, historically known as the Admiralty nautical mile, is defined as exactly 6,080 feet (1,853.184 metres), making it slightly longer than the international nautical mile of exactly 1,852 metres.
Why convert from arpent to UK nautical mile?: Converting from arpent to UK nautical mile helps interpret historical French land data in terms compatible with UK maritime charts and legal or surveying contexts.

Key Terminology

Arpent: A historical French unit of length used mainly for land measurement, with sizes varying by region and time.
Nautical mile (UK) [NM (UK)]: A UK-defined nautical mile, known as the Admiralty nautical mile, set as exactly 6,080 feet or 1,853.184 metres, slightly longer than the international nautical mile.
Cadastral mapping: The process of creating detailed maps that describe land parcels, ownership, and boundaries, often used in surveying and legal contexts.

Quick Knowledge Check

What was the primary historical use of the arpent unit?

Maritime navigation distances in UK Admiralty charts

Land measurement and cadastral purposes in French colonies

Modern international shipping measurements

How is the UK nautical mile defined compared to the international nautical mile?

It is exactly 1,852 metres like the international nautical mile

It is exactly 6,080 feet, making it slightly longer than the international nautical mile

It varies regionally and is shorter than the international nautical mile

Which of these is a limitation when converting arpent to UK nautical mile?

The arpent has a fixed worldwide length

The UK nautical mile and international nautical mile are exactly the same

Historical arpent length varies depending on region and period

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