What is a mile (US survey)?

A mile (US survey) is a land measurement unit defined as exactly 5,280 US survey feet, used primarily for surveying and mapping in the United States.

What is a nautical league (int.)?

An international nautical league is a historical maritime distance equal to three international nautical miles, often used in old nautical charts and sailing logs.

Why convert from mile (US survey) to nautical league (int.)?

This conversion helps translate historical land survey distances into maritime units to better understand and interpret older nautical documents and charts.

How to Convert from Mile (US survey) [mi] to Nautical league (int.)?

Learn how to convert measurements from mile (US survey) to nautical league (int.) with clear steps, examples, and use cases for historical and surveying contexts.

Mile (US survey) [mi]

Nautical league (int.)

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Mile (US survey) [mi] to Nautical league (int.) Conversion Table

Mile (US survey) [mi]	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.

Mile (US survey) [mi] to Nautical league (int.) Conversion Table
Mile (US survey) [mi]	Nautical league (int.)

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What Is This Tool?

This unit converter calculates lengths by converting miles measured using the US survey system into international nautical leagues. It is designed for use in historical surveying, cartography, and maritime research where legacy measurement units need translation.

How to Use This Tool?

Enter the distance value in miles (US survey) you wish to convert
Select mile (US survey) as the input unit and nautical league (int.) as the output unit
Initiate the conversion to receive the equivalent length in nautical leagues
Use the results to interpret historical maritime or land survey documents accurately

Key Features

Converts mile (US survey), a legacy land measurement, to nautical league (int.), a historical maritime unit
Supports research and interpretation of old maps, nautical charts, and survey records
Provides exact conversion details based on established equivalences
Useful for cross-domain historical geography, maritime archaeology, and cartographic analysis

Examples

5 mile (US survey) converts to approximately 1.4483 nautical leagues (int.)
10 mile (US survey) converts to approximately 2.8966 nautical leagues (int.)

Common Use Cases

Translating historical land survey distances into maritime units for chart interpretation
Converting measurements for studying 18th to 19th-century sailing logs and nautical charts
Supporting cadastral and geodetic research involving legacy measurement units
Facilitating archival and scholarly analysis of historical geographic data

Tips & Best Practices

Verify which mile definition applies when working with historical data to ensure correct conversions
Use the tool for interpreting legacy records rather than modern navigation due to unit obsolescence
Cross-reference results with original documentation when possible to maintain data integrity

Limitations

US survey mile differs slightly from the international mile, affecting modern precision
Nautical leagues are mostly obsolete and not used in current navigation systems
Minor discrepancies may occur due to regional variations in the definitions of feet and miles

Frequently Asked Questions

What is a mile (US survey)?: A mile (US survey) is a land measurement unit defined as exactly 5,280 US survey feet, used primarily for surveying and mapping in the United States.
What is a nautical league (int.)?: An international nautical league is a historical maritime distance equal to three international nautical miles, often used in old nautical charts and sailing logs.
Why convert from mile (US survey) to nautical league (int.)?: This conversion helps translate historical land survey distances into maritime units to better understand and interpret older nautical documents and charts.

Key Terminology

Mile (US survey): A land length unit equal to exactly 5,280 US survey feet, used in US surveying and mapping to match historical cadastral data.
Nautical league (int.): A historical maritime unit equal to three international nautical miles, used for measuring distances at sea in older nautical contexts.
US survey foot: A unit of length defined as 1,200/3,937 metres, used in the US survey mile system.

Quick Knowledge Check

What is the exact relationship between a mile (US survey) and a nautical league (int.)?

1 mile (US survey) equals 3 nautical leagues (int.)

1 mile (US survey) equals approximately 0.2897 nautical league (int.)

1 mile (US survey) equals 1 nautical league (int.)

Which field commonly uses the US survey mile?

Modern ocean navigation

Cadastral and land surveys in the US

International maritime trade

Why are nautical leagues mainly used today?

For precise modern navigation

Primarily for historical and scholarly research

For commercial shipping distances

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