What is a chain (US survey)?

A chain (US survey) is a traditional length unit equal to 66 US survey feet, historically used in U.S. land surveying and subdivided into 100 links.

What is the Roman actus unit?

The Roman actus is an ancient Roman unit of length measuring 120 Roman feet, used for land measurement and defining areas in Roman surveying.

Why convert chain (US survey) to Roman actus?

This conversion helps compare and interpret land measurements from historical U.S. surveys alongside Roman surveying systems, useful for academic and cadastral studies.

How to Convert from Chain (US survey) [ch] to Roman actus

Learn how to perform length conversions from the traditional US survey chain unit to the ancient Roman actus. This guide helps translate historical survey measurements for mapping and research.

Chain (US survey) [ch]

Roman actus

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Chain (US survey) [ch] to Roman actus Conversion Table

Chain (US survey) [ch]	Roman actus

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 (US survey) [ch] to Roman actus Conversion Table
Chain (US survey) [ch]	Roman actus

Explore More Length Units Converter

What Is This Tool?

This converter transforms length values measured in chain (US survey) units into Roman actus units, bridging historical surveying measures from U.S. and Roman systems.

How to Use This Tool?

Input the length value in chain (US survey) units
Select Roman actus as the target unit for conversion
Click the convert button to obtain the equivalent measurement
Use the results to assist with historical survey analysis or research

Key Features

Converts chain (US survey) lengths into Roman actus units using established conversion rates
Supports interpretation of historical land survey data from different eras
Browser-based and easy to use without installation
Facilitates comparative studies in cadastral and land measurement history

Examples

2 chains (US survey) equal approximately 1.134 Roman actus
5 chains (US survey) correspond to about 2.835 Roman actus

Common Use Cases

Interpreting distances in historical U.S. land deeds and survey records
Converting legacy survey measurements for mapping and GIS applications
Researching Roman land surveying and cadastral data
Comparing land measurements across different historical systems

Tips & Best Practices

Verify unit definitions when working with historical documents
Consider rounding differences due to varying foot definitions
Use conversions primarily for academic, archaeological, or cadastral research
Cross-reference converted results with original records when possible

Limitations

Conversion precision may be affected by differences in unit standards and rounding
Roman actus is an obsolete unit with limited modern application
Minor discrepancies might occur due to varying foot definitions in historical units

Frequently Asked Questions

What is a chain (US survey)?: A chain (US survey) is a traditional length unit equal to 66 US survey feet, historically used in U.S. land surveying and subdivided into 100 links.
What is the Roman actus unit?: The Roman actus is an ancient Roman unit of length measuring 120 Roman feet, used for land measurement and defining areas in Roman surveying.
Why convert chain (US survey) to Roman actus?: This conversion helps compare and interpret land measurements from historical U.S. surveys alongside Roman surveying systems, useful for academic and cadastral studies.

Key Terminology

Chain (US survey): A traditional unit of length equal to 66 US survey feet, used historically in American land surveying.
Roman actus: An ancient Roman length unit of 120 Roman feet, used for land measurement and related area definitions.
Cadastral surveying: The process of surveying land parcels to define boundaries and ownership for legal purposes.

Quick Knowledge Check

Which unit equals 66 US survey feet?

Roman actus

Chain (US survey)

Roman foot

Approximately how many metres is one Roman actus?

20.1168 m

35.5 m

66 m

What is a common use for the Roman actus in ancient times?

Surveying land and defining areas

Modern property boundary measurements

Navigation at sea

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