What is a furlong (US survey)?

It is a historical U.S. length unit used in surveying, defined as 660 US survey feet, or 1/8 of a US survey mile.

A chain is a traditional surveying unit equal to 66 feet, commonly used for measuring land parcels.

Why convert furlongs to chains?

Converting helps interpret and reconcile older land surveys and cadastral records with finer measurement units used in surveying.

How to Convert from Furlong (US survey) to Chain

Learn to convert length measurements from the US survey furlong (fur) to the traditional surveying unit chain (ch) with this easy-to-use online converter.

Furlong (US survey) [fur]

Chain [ch]

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

Furlong (US survey) [fur] to Chain [ch] Conversion Table

Furlong (US survey) [fur]	Chain [ch]

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 Chain [ch] Conversion Table
Furlong (US survey) [fur]	Chain [ch]

Explore More Length Units Converter

What Is This Tool?

This online unit converter helps transform measurements from furlong (US survey), a historic non-SI length unit used mainly in U.S. land surveying, to chain, a traditional unit commonly employed in cadastral and engineering measurements.

How to Use This Tool?

Enter the length value in furlong (US survey).
Select 'furlong (US survey)' as the input unit.
Choose 'chain' as the output unit.
Click convert to see the equivalent length in chains.
Use results for land surveying, historical data interpretation, or legal documentation.

Key Features

Converts furlong (US survey) to chain with exact conversion based on established definitions.
Easy-to-use interface for accurate length unit transformation.
Supports interpreting historical U.S. land survey data and legal land descriptions.
Ideal for professionals working with cadastral maps, historical deeds, and land registration.
Browser-based tool requiring no installation.

Examples

2 furlongs (US survey) converts to 20.00004 chains.
0.5 furlong (US survey) equals 5.00001 chains.

Common Use Cases

Describing land parcel boundaries in older U.S. cadastral surveys.
Converting historical maps and deeds into metric or modern units.
Reporting traditional horse racing distances using customary units.
Interpreting railway and agricultural engineering layouts with imperial units.
Reconciling legal land descriptions with more detailed surveying measures.

Tips & Best Practices

Ensure input values use the US survey foot standard for higher accuracy.
Cross-check historical records for unit definitions to reduce discrepancies.
Use this tool for approximate conversions in legacy land surveying contexts.
Combine results with metric conversion tools when updating modern land data.

Limitations

Both furlong (US survey) and chain are non-SI and primarily historical units.
Contemporary surveying typically uses metric units, limiting compatibility.
Possible minor discrepancies arise due to variations in survey foot standards.
Precision may be affected by differing definitions found in older documents.

Frequently Asked Questions

What is a furlong (US survey)?: It is a historical U.S. length unit used in surveying, defined as 660 US survey feet, or 1/8 of a US survey mile.
How long is a chain?: A chain is a traditional surveying unit equal to 66 feet, commonly used for measuring land parcels.
Why convert furlongs to chains?: Converting helps interpret and reconcile older land surveys and cadastral records with finer measurement units used in surveying.

Key Terminology

Furlong (US survey): A non-SI length unit used in U.S. surveying, equal to 660 US survey feet or 1/8 of a US survey mile.
Chain: A traditional surveying length unit of 66 feet, often subdivided into 100 links.
Cadastral Surveying: The process of documenting land parcels and boundaries for ownership and legal purposes.

Quick Knowledge Check

What is the basic conversion from furlong (US survey) to chain?

1 furlong = 8 chains

1 furlong = 10.00002 chains

1 furlong = 12 chains

Which unit is traditionally subdivided into 100 links?

Furlong

Chain

Rod

In what context is this unit conversion mainly used?

Modern metric surveying

Historical U.S. cadastral surveys

International nautical navigation

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