What is a furlong (US survey)?

A furlong (US survey) is a historical non-SI unit of length equal to 660 US survey feet or approximately 201.1684 meters, used mainly in older US land surveys.

Why convert furlongs to millimeters?

Converting to millimeters allows precise translation of traditional measurements into the metric system for engineering, surveying, and archival work.

Are the converted millimeter values exact?

The conversion is based on defined exact relationships, but original source data may have rounding that affects absolute precision.

How to Convert from Furlong (US survey) [fur] to Millimeter [mm]?

Easily convert length measurements from furlongs (US survey) to millimeters using this precise online unit converter tool designed for historical and modern applications.

Furlong (US survey) [fur]

Millimeter [mm]

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Furlong (US survey) [fur] to Millimeter [mm] Conversion Table

Furlong (US survey) [fur]	Millimeter [mm]

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 Millimeter [mm] Conversion Table
Furlong (US survey) [fur]	Millimeter [mm]

Explore More Length Units Converter

What Is This Tool?

This converter facilitates transforming length values from the historical US survey furlong unit into millimeters, a metric unit. It is ideal for interpreting old land surveys, cadastral data, and other contexts requiring conversion to the SI system.

How to Use This Tool?

Enter the value in furlongs (US survey) you wish to convert.
Select the from-unit as furlong (US survey) and to-unit as millimeter.
Click the convert button to obtain the corresponding length in millimeters.
Review the converted value and use it in your application or study.

Key Features

Converts values from furlong (US survey) to millimeters with exact unit definitions.
Supports accurate translation of historical and customary length measurements.
Easy-to-use, browser-based interface for quick conversions.
Includes clear example conversions to guide users.
Handles large numerical results typical of furlong-to-millimeter conversions.

Examples

2 furlongs (US survey) equal 402336.8046736 millimeters.
0.5 furlong (US survey) equals 100584.2011684 millimeters.

Common Use Cases

Translating historical survey measurements into modern metric units for engineering or archival purposes.
Interpreting and converting distances from old cadastral maps and legal land descriptions.
Reporting distances in traditional horse racing and other customary measurement contexts.
Supporting civil engineering and land surveying requiring consistency with SI units.

Tips & Best Practices

Double-check large converted values carefully to prevent numerical errors.
Use the tool for reliable unit translation especially when dealing with legacy data sets.
Combine this conversion with knowledge of unit context for accurate interpretation.
Keep in mind the exact definition of the furlong in US surveying for consistency.
Be cautious with rounding in source documents to maintain accuracy.

Limitations

The furlong (US survey) is a historical measurement and relies on exact definitions which might vary in legacy records.
Converted millimeter values can be very large, requiring careful handling to avoid misinterpretation or overflow issues.
Rounding or approximation errors may exist in original survey documents affecting conversion accuracy.

Frequently Asked Questions

What is a furlong (US survey)?: A furlong (US survey) is a historical non-SI unit of length equal to 660 US survey feet or approximately 201.1684 meters, used mainly in older US land surveys.
Why convert furlongs to millimeters?: Converting to millimeters allows precise translation of traditional measurements into the metric system for engineering, surveying, and archival work.
Are the converted millimeter values exact?: The conversion is based on defined exact relationships, but original source data may have rounding that affects absolute precision.

Key Terminology

Furlong (US survey): A historical unit of length used in U.S. surveying, defined as 660 US survey feet, equivalent to about 201.1684 meters.
Millimeter (mm): An SI derived unit of length equal to one-thousandth of a meter, used for measuring very small distances.

Quick Knowledge Check

Which modern unit does this tool convert furlongs into?

Centimeters

Millimeters

Meters

What is the primary use of furlong (US survey)?

Current construction length unit

Historical land surveys and cadastral data

Measuring thickness of materials

What should users be careful about when converting furlongs to millimeters?

Possible unit mislabeling

Handling very large numbers

Lack of browser support

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