What is a chain used for?

A chain is a traditional length unit used mainly in cadastral surveying and historical land measurement.

Why convert from chain to megameter?

Converting helps translate older surveying units into modern SI units suitable for large-scale geographic and scientific analysis.

What does 1 chain equal in megameters?

One chain is equal to 0.0000201168 megameters.

How to Convert from Chain [ch] to Megameter [Mm]?

Learn how to convert length measurements from chain [ch], a traditional surveying unit, to megameter [Mm], a unit used for large terrestrial distances. This guide covers definitions, use cases, conversion steps, and examples.

Chain [ch]

Megameter [Mm]

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

Chain [ch] to Megameter [Mm] Conversion Table

Chain [ch]	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.

Chain [ch] to Megameter [Mm] Conversion Table
Chain [ch]	Megameter [Mm]

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What Is This Tool?

This converter enables the transformation of length values from chain, a historical surveying measure, to megameter, a modern SI unit for very large distances. It helps users interpret older land measurement units into units suited for large-scale geographic and scientific applications.

How to Use This Tool?

Enter the length value in chains you want to convert
Select chain [ch] as the input unit and megameter [Mm] as the output unit
Click the convert button to get the length in megameters
Review the output value suitable for large-scale distance analysis

Key Features

Converts lengths from chain [ch] to megameter [Mm]
Supports understanding of traditional surveying units
Helps translate historical measures into contemporary SI units
Browser-based and easy to operate
Useful for GIS, planetary science, and infrastructure planning

Examples

10 chains equals 0.000201168 megameters
50 chains equals 0.00100584 megameters

Common Use Cases

Translating cadastral surveying measurements into SI units
Converting historical land and property records for GIS applications
Analyzing planetary distances and regional geodesy data
Supporting engineering projects involving very large distances
Interpreting older survey plans and railway or agricultural layouts

Tips & Best Practices

Use the converter when working with legacy surveying data for accuracy
Be mindful that resulting megameter values can be very small decimals
Apply this tool for large-scale geographic and scientific analyses
Always cross-check conversions when precise measurements are critical

Limitations

Chain is a small, historical unit, so conversions yield very small decimal results
May require high numeric precision to handle tiny megameter values
Chains are rarely used in modern surveys except for interpreting older records

Frequently Asked Questions

What is a chain used for?: A chain is a traditional length unit used mainly in cadastral surveying and historical land measurement.
Why convert from chain to megameter?: Converting helps translate older surveying units into modern SI units suitable for large-scale geographic and scientific analysis.
What does 1 chain equal in megameters?: One chain is equal to 0.0000201168 megameters.

Key Terminology

Chain [ch]: A surveying unit equal to 66 feet or 20.1168 metres, traditionally used in land measurement.
Megameter [Mm]: An SI derived length unit equal to one million metres, used to express very large distances.

Quick Knowledge Check

What is the primary use of the chain unit?

Describing planetary distances

Historical surveying and land measurement

Modern infrastructure planning

How many metres is one megameter?

1000 metres

1,000,000 metres

20.1168 metres

Why might chain to megameter conversions produce very small numbers?

Because megameter is a smaller unit than chain

Because chain is a much smaller length unit compared to megameter

Because both units measure the same length scale

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