What is a furlong (US survey)?

A furlong (US survey) is a historical US length unit equal to 660 US survey feet or about 201.1684 meters, traditionally used in land surveying and legal descriptions.

What is a mil or thou?

A mil, also known as a thou, equals one thousandth of an inch. It is commonly used in manufacturing to specify small thicknesses and clearances.

Why convert furlongs to mil?

Converting furlongs to mil helps translate large historical survey distances into very fine measurements used in engineering and manufacturing.

Convert Furlong (US survey) to Mil (Thou) Length Units

Easily convert length values from furlong (US survey) to mil (thou) using our precise unit converter. Ideal for historical surveying and manufacturing measurements.

Furlong (US survey) [fur]

Mil [mil, thou]

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

Furlong (US survey) [fur] to Mil [mil, thou] Conversion Table

Furlong (US survey) [fur]	Mil [mil, thou]

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 Mil [mil, thou] Conversion Table
Furlong (US survey) [fur]	Mil [mil, thou]

Explore More Length Units Converter

What Is This Tool?

This unit converter transforms length measurements from furlong (US survey), a historical US surveying unit, into mil (thou), a very small length unit widely used in manufacturing and engineering.

How to Use This Tool?

Enter the length value in furlongs (US survey) you want to convert.
Select furlong (US survey) as the input unit and mil (thou) as the output unit.
Invoke the conversion function to get the length in mils.

Key Features

Converts furlong (US survey) to mil (thou) with accurate unit definitions.
Supports historical and modern measurement contexts including surveying and engineering.
Displays results suitable for applications involving very large or very small units.

Examples

2 furlongs (US survey) converts to 15,840,031.6800634 mil.
0.5 furlong (US survey) converts to 3,960,007.92001585 mil.

Common Use Cases

Translating historical parcel boundaries into modern precise units.
Interpreting older land surveys and legal descriptions for compatibility with industrial standards.
Specifying fine thickness or spacing in manufacturing such as coatings, PCB design, and mechanical fabrication.

Tips & Best Practices

Be mindful that furlong is a historical unit and may be unfamiliar to some users.
Expect very large numbers when converting to mil due to scale differences.
Use the converted values primarily for compatibility and comparison rather than direct practical measurement.

Limitations

Furlong (US survey) is a non-SI and historical measurement unit.
Mil is extremely small compared to furlong, which can produce cumbersome numbers.
Rounding or precision issues can occur due to the large scale difference between units.

Frequently Asked Questions

What is a furlong (US survey)?: A furlong (US survey) is a historical US length unit equal to 660 US survey feet or about 201.1684 meters, traditionally used in land surveying and legal descriptions.
What is a mil or thou?: A mil, also known as a thou, equals one thousandth of an inch. It is commonly used in manufacturing to specify small thicknesses and clearances.
Why convert furlongs to mil?: Converting furlongs to mil helps translate large historical survey distances into very fine measurements used in engineering and manufacturing.

Key Terminology

Furlong (US survey): A historical non-SI unit of length equal to 660 US survey feet, commonly used in older land surveys and legal property descriptions.
Mil (Thou): A small unit of length equal to one thousandth of an inch, widely used in manufacturing for specifying small thicknesses and tolerances.

Quick Knowledge Check

What does 1 furlong (US survey) equal in mil?

7920015.8400317 mil

660 mil

0.001 mil

In what field is the furlong (US survey) primarily used?

Historical land surveying

Modern electronics design

Automotive coating application

What is a mil commonly used to measure?

Paint thickness and PCB trace widths

Land parcel boundaries

Horse racing distances

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