What is a furlong (US survey)?

It is a historical non-SI unit of length used in US surveying, defined as 660 US survey feet or about 201.1684 metres, commonly used in old land measurements and horse racing distances.

What is the megameter used for?

The megameter is an SI unit equal to one million metres, used to represent very large distances such as planetary sizes, country-wide distances, and large engineering projects.

Why convert furlongs to megameters?

Converting helps interpret historical and customary land units into large-scale SI units, facilitating scientific analysis, mapping, and modern engineering planning.

How to Convert from Furlong (US survey) [fur] to Megameter [Mm]?

Learn to convert lengths from the historical US survey furlong to the large-scale SI unit megameter using this easy-to-use converter. Understand key features, use cases, and more.

Furlong (US survey) [fur]

Megameter [Mm]

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

Furlong (US survey) [fur] to Megameter [Mm] Conversion Table

Furlong (US survey) [fur]	Megameter [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 Megameter [Mm] Conversion Table
Furlong (US survey) [fur]	Megameter [Mm]

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What Is This Tool?

This length unit converter transforms values from the US survey furlong, a historical non-SI unit used primarily in U.S. land surveying, into megameters, an SI derived unit representing large terrestrial distances. It helps translate traditional measurements into modern scientific units.

How to Use This Tool?

Enter the numeric length value expressed in furlongs (US survey).
Select the unit 'furlong (US survey) [fur]' as the input unit.
Choose 'megameter [Mm]' as the target output unit.
Click the convert button to see the equivalent length in megameters.

Key Features

Converts furlong (US survey) to megameter units accurately following official definitions.
Browser-based and user-friendly interface for quick length conversions.
Supports interpretation of historical land measurements and modern scientific distances.
Displays results suitable for large-scale distance measurements such as planetary or regional planning.

Examples

Convert 5 furlongs (US survey) to megameters: 5 × 0.0002011684 = 0.001005842 Mm
Convert 10 furlongs (US survey) to megameters: 10 × 0.0002011684 = 0.002011684 Mm

Common Use Cases

Interpreting and converting older U.S. cadastral surveys and legal land descriptions into metric units.
Translating traditional race distances and customary measurements into scientific units.
Describing planetary distances and large-scale engineering or infrastructure planning.

Tips & Best Practices

Confirm the context to ensure the furlong (US survey) is the intended unit for input.
Use megameter units for appropriately large distances to maintain practical readability.
Cross-check historical measurement conversions for consistency due to non-SI origins.

Limitations

Furlong (US survey) is a historical, region-specific non-SI unit that may cause confusion if not clearly identified.
Megameter results for small furlong values yield very small decimals, which might be impractical for everyday use.
Precision relies on exact definitions of US survey foot and international standards, so minor discrepancies may exist.

Frequently Asked Questions

What is a furlong (US survey)?: It is a historical non-SI unit of length used in US surveying, defined as 660 US survey feet or about 201.1684 metres, commonly used in old land measurements and horse racing distances.
What is the megameter used for?: The megameter is an SI unit equal to one million metres, used to represent very large distances such as planetary sizes, country-wide distances, and large engineering projects.
Why convert furlongs to megameters?: Converting helps interpret historical and customary land units into large-scale SI units, facilitating scientific analysis, mapping, and modern engineering planning.

Key Terminology

Furlong (US survey): A historical non-SI unit used in U.S. surveying equal to 660 US survey feet or about 201.1684 metres.
Megameter [Mm]: An SI derived unit of length equal to 10^6 metres, used for expressing very large distances such as planetary scales.
US Survey Foot: The unit defining the length of a foot used in U.S. surveying, underpinning the furlong (US survey) length measurement.

Quick Knowledge Check

What is one furlong (US survey) approximately equal to in megameters?

0.002011684 Mm

0.0002011684 Mm

1 Mm

Which unit is suitable for describing very large terrestrial distances?

Furlong (US survey)

Megameter

Rod

What is a common use of furlong (US survey)?

Reporting planetary distances

Describing traditional race distances

Large-scale engineering planning

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