What is a Chain (US survey)?

It is a traditional length unit equal to 66 US survey feet, used historically in US land surveying.

What does the League unit represent?

A league is a historical unit of length used on land and sea; its exact value varies but is often about 3 statute miles or 3 nautical miles.

Why are Chain and League units not recommended for precise engineering?

Because both units are not SI standards and their historical variation can lead to measurement inaccuracies.

How to Convert from Chain (US survey) [ch] to League [lea]

Easily convert length measurements from Chain (US survey) to League with this practical online tool. Useful for historical land surveying, nautical navigation, and interpreting legacy measurements accurately.

Chain (US survey) [ch]

League [lea]

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

Chain (US survey) [ch] to League [lea] Conversion Table

Chain (US survey) [ch]	League [lea]

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.

Chain (US survey) [ch] to League [lea] Conversion Table
Chain (US survey) [ch]	League [lea]

Explore More Length Units Converter

What Is This Tool?

This unit converter enables you to transform lengths measured in Chain (US survey) to League, both traditional units used in historical land and sea measurements. It is designed to assist users working with old surveying records, nautical charts, and documents referencing these units.

How to Use This Tool?

Enter the value measured in Chain (US survey) into the input field.
Select Chain (US survey) as the source unit and League as the target unit.
Click on the convert button to see the equivalent length in League.

Key Features

Converts Chain (US survey), a unit equal to 66 US survey feet, into League, a historical length unit.
Supports interpretation of legacy land deeds, cadastral surveys, nautical navigation data, and historical texts.
Browser-based and easy to use without installation.

Examples

10 Chain (US survey) equals 0.04166675 League.
100 Chain (US survey) equals 0.4166675 League.

Common Use Cases

Converting historic land survey measurements to leagues for general distance interpretation.
Translating nautical chart distances recorded in leagues into a more familiar unit.
Researching and analyzing legacy land deeds and cadastral data involving these traditional units.

Tips & Best Practices

Verify the context of the league unit being used, as its length varied historically and regionally.
Use this converter mainly for interpreting historical or literary sources rather than precise modern engineering.
Consider supplementary conversion to metric units if scientific accuracy is required.

Limitations

The length of a league is not fixed historically or regionally, which can cause inaccuracies.
The Chain (US survey) is defined using a survey foot differing slightly from the international foot.
Neither Chain (US survey) nor League are SI units; modern conversions to metric units may be more precise.

Frequently Asked Questions

What is a Chain (US survey)?: It is a traditional length unit equal to 66 US survey feet, used historically in US land surveying.
What does the League unit represent?: A league is a historical unit of length used on land and sea; its exact value varies but is often about 3 statute miles or 3 nautical miles.
Why are Chain and League units not recommended for precise engineering?: Because both units are not SI standards and their historical variation can lead to measurement inaccuracies.

Key Terminology

Chain (US survey): A unit of length used in historic US surveying, equal to 66 US survey feet and subdivided into 100 links.
League: A historical length unit with variable definition, commonly about 3 statute or nautical miles, used in land and sea distances.
US Survey Foot: A measurement foot used primarily in US land surveying, slightly different from the international foot.

Quick Knowledge Check

Which unit is traditionally equal to 66 US survey feet?

League

Chain (US survey)

Nautical mile

What is a common length associated with a league?

Approximately 3 statute miles

Exactly 100 meters

50 feet

Why might converting historical Chain to League introduce inaccuracies?

Because they are both SI units

Due to regional and historical variation of the league length

Because Chain is a mass unit

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