What is a furlong (US survey)?

A furlong (US survey) is a historical non-SI length unit defined as 660 US survey feet, equal to about 201.1684 meters, originally used in U.S. land surveying.

What defines a nautical league (int.)?

A nautical league (international) is a maritime unit equal to 3 international nautical miles or 5,556 meters, historically used for expressing distances at sea.

Why convert furlongs to nautical leagues?

Conversion helps translate historical terrestrial and maritime measurements into a consistent system to support archival research, legal interpretation, and comparison between land and sea distances.

How to Convert from Furlong (US survey) [fur] to Nautical league (int.)?

Learn how to convert measurements from furlong (US survey) to nautical league (int.) using this straightforward online unit converter for historical length units.

Furlong (US survey) [fur]

Nautical league (int.)

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Furlong (US survey) [fur] to Nautical league (int.) Conversion Table

Furlong (US survey) [fur]	Nautical league (int.)

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.

Furlong (US survey) [fur] to Nautical league (int.) Conversion Table
Furlong (US survey) [fur]	Nautical league (int.)

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What Is This Tool?

This tool allows users to convert lengths from the US survey furlong to the international nautical league, both historical units used mainly in surveying and maritime contexts. It simplifies working with older measurements by providing an easy way to translate between these units.

How to Use This Tool?

Enter the value in furlongs (US survey) that you want to convert
Select furlong (US survey) as the source unit if not preselected
Choose nautical league (int.) as the target unit
Click the convert button to see the result instantly

Key Features

Converts furlong (US survey) to nautical league (int.) with accurate factor
Supports historical length units used in surveying and maritime navigation
Provides examples demonstrating conversion calculations
Web-based and easy to use without any installation
Facilitates archival and legal interpretation of older measurement records

Examples

5 furlongs (US survey) equals approximately 0.1810 nautical leagues (int.)
10 furlongs (US survey) equals approximately 0.3621 nautical leagues (int.)

Common Use Cases

Decoding parcel boundaries and distances from historical U.S. land surveys
Interpreting and converting older maps, deeds, and legal land descriptions
Analyzing race distances in traditional horse racing contexts
Translating distances found in historical nautical charts and sailing logs
Archival research requiring conversion of maritime measurements to SI units

Tips & Best Practices

Always verify the original unit context, especially with historical data
Use the tool to cross-check measurements when digitizing old documents
Combine conversions with modern units for comprehensive analysis
Be aware that original measurements may have rounding or local variations
Utilize the converter for legal or scholarly interpretations involving historic records

Limitations

Both furlong (US survey) and nautical league (int.) are historical units rarely used today
Conversion does not account for local variations or informal unit usage
Measurement precision depends on original surveying methods and possible rounding
Tool assumes exact definitions without adjustments for regional discrepancies

Frequently Asked Questions

What is a furlong (US survey)?: A furlong (US survey) is a historical non-SI length unit defined as 660 US survey feet, equal to about 201.1684 meters, originally used in U.S. land surveying.
What defines a nautical league (int.)?: A nautical league (international) is a maritime unit equal to 3 international nautical miles or 5,556 meters, historically used for expressing distances at sea.
Why convert furlongs to nautical leagues?: Conversion helps translate historical terrestrial and maritime measurements into a consistent system to support archival research, legal interpretation, and comparison between land and sea distances.

Key Terminology

Furlong (US survey): A historic US length unit used in surveying defined as 660 US survey feet or about 201.1684 meters.
Nautical league (int.): A historical maritime unit equal to 3 international nautical miles or 5,556 meters, used for measuring sea distances.

Quick Knowledge Check

What is the length of one furlong (US survey) approximately?

About 201 meters

About 100 meters

About 500 meters

How many nautical miles are in one international nautical league?

1 nautical mile

3 nautical miles

5 nautical miles

Which use case benefits from converting furlongs to nautical leagues?

Modern construction projects

Analyzing historical maritime charts

Everyday weather forecasting

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