What is an inch (US survey)?

It is a legacy length unit equal to 1/12 of a US survey foot, defined exactly as 100/3937 metres, traditionally used in U.S. surveying and cadastral work.

What does one chain measure?

A chain is a traditional surveying unit equivalent to 66 feet or about 20.1168 metres, historically used for land measurement and dividing property parcels.

When should I use this converter?

Use this tool when converting legacy surveying data recorded in US survey inches into chains, especially for historical cadastral or geodetic analyses.

How to Convert from Inch (US survey) [in] to Chain [ch]

Learn how to convert measurements from the US survey inch to chain, two traditional units used in surveying and land measurement. This guide explains their definitions, use cases, and conversion method.

Inch (US survey) [in]

Chain [ch]

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

Inch (US survey) [in] to Chain [ch] Conversion Table

Inch (US survey) [in]	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.

Inch (US survey) [in] to Chain [ch] Conversion Table
Inch (US survey) [in]	Chain [ch]

Explore More Length Units Converter

What Is This Tool?

This converter facilitates changing length values from the US survey inch—a legacy unit used in historical U.S. surveying—to the chain, a traditional unit commonly applied in land measurement and cadastral surveying.

How to Use This Tool?

Enter the length value in inch (US survey)
Select the unit 'inch (US survey) [in]' as the input
Choose 'chain [ch]' as the target unit
Click convert to get the measurement in chains

Key Features

Converts length from US survey inch to chain accurately
Supports legacy surveying and cadastral measurement units
Useful for interpreting historical survey and land records
Browser-based and easy to use

Examples

Convert 10 inch (US survey) to chain: 10 × 0.0012626288 = 0.012626288 chain
Convert 500 inch (US survey) to chain: 500 × 0.0012626288 = 0.6313144 chain

Common Use Cases

Interpreting and converting historical cadastral and geodetic records using US survey units
Converting legacy land parcel descriptions for modern surveying or mapping software
Analyzing older engineering and agricultural layout data recorded with imperial surveying units

Tips & Best Practices

Ensure you verify the unit type as US survey inch to maintain conversion accuracy
Use this tool primarily for legacy and historical data interpretations
Be aware that chains are uncommon in modern surveying outside historical contexts

Limitations

The US survey inch differs slightly from the international inch, requiring careful use when handling precise data
Chains are rarely applied in contemporary surveying except in specific traditional applications
Conversion is mainly relevant for niche fields involving historic land measurement

Frequently Asked Questions

What is an inch (US survey)?: It is a legacy length unit equal to 1/12 of a US survey foot, defined exactly as 100/3937 metres, traditionally used in U.S. surveying and cadastral work.
What does one chain measure?: A chain is a traditional surveying unit equivalent to 66 feet or about 20.1168 metres, historically used for land measurement and dividing property parcels.
When should I use this converter?: Use this tool when converting legacy surveying data recorded in US survey inches into chains, especially for historical cadastral or geodetic analyses.

Key Terminology

Inch (US survey): A legacy surveying length unit defined as 1/12 of a US survey foot, equal to exactly 100/3937 metres.
Chain: A traditional surveying unit equal to 66 feet, commonly used to measure land parcels and property boundaries.
Cadastral surveying: Surveying related to the boundaries and ownership of land parcels for mapping and registration purposes.

Quick Knowledge Check

What legacy unit does the US survey inch relate to?

International inch

US survey foot

Metric metre

What is a chain typically used for?

Modern digital mapping

Land measurement and cadastral surveying

Measuring liquids

Why is the conversion from US survey inch to chain important?

For modern construction projects

To interpret historical surveying data

To measure daily distances

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