What is the U.S. survey foot?

It is a unit of length used historically in U.S. land surveying, defined exactly as 1200/3937 meters.

A chain equals 66 feet, or about 20.1168 meters, traditionally used in surveying.

Why convert from foot (US survey) to chain?

To interpret and maintain consistency in CAD records, cadastral surveys, and historical land data.

How to Convert from Foot (US survey) [ft] to Chain [ch]?

Learn how to convert length measurements from the U.S. survey foot to the traditional chain unit commonly used in land surveying and cadastral records.

Foot (US survey) [ft]

Chain [ch]

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

Foot (US survey) [ft] to Chain [ch] Conversion Table

Foot (US survey) [ft]	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.

Foot (US survey) [ft] to Chain [ch] Conversion Table
Foot (US survey) [ft]	Chain [ch]

Explore More Length Units Converter

What Is This Tool?

This tool converts length values from the U.S. survey foot to the chain unit, both of which are historically significant in surveying and land measurement.

How to Use This Tool?

Enter the length value measured in Foot (US survey).
Select Foot (US survey) as the source unit.
Choose Chain as the target unit.
Initiate the conversion to view the result in chains.

Key Features

Converts between Foot (US survey) and Chain units of length.
Utilizes exact conversion based on the defined relationship between these units.
Designed for use in cadastral surveys, engineering projects, and historical data interpretation.
Browser-based and easy to use for quick conversions.

Examples

100 Foot (US survey) converts to approximately 1.51515455 Chain.
5280 Foot (US survey) converts to about 80 Chain.

Common Use Cases

Translating property boundaries recorded in U.S. survey feet into traditional surveying units.
Interpreting legacy cadastral and land survey measurements.
Converting historical engineering and construction project dimensions.
Integrating old surveying records into modern GIS and land registration systems.

Tips & Best Practices

Ensure you understand whether the measurement uses U.S. survey foot or international foot for accuracy.
Use the conversion when working with historical records to maintain consistency in land and property data.
Verify the unit definitions in legacy documents before performing conversions.
Use this tool for educational purposes and data translation between measurement systems.

Limitations

The U.S. survey foot differs slightly from the international foot, affecting precision.
Chains are mostly obsolete and mainly relevant for interpreting historical land and survey records.
Accuracy relies on correct identification of the unit system in original data.

Frequently Asked Questions

What is the U.S. survey foot?: It is a unit of length used historically in U.S. land surveying, defined exactly as 1200/3937 meters.
How long is a chain?: A chain equals 66 feet, or about 20.1168 meters, traditionally used in surveying.
Why convert from foot (US survey) to chain?: To interpret and maintain consistency in CAD records, cadastral surveys, and historical land data.

Key Terminology

Foot (US survey): A unit of length used in U.S. land surveying, defined exactly as 1200/3937 meters.
Chain: A traditional surveying unit equal to 66 feet, divided into 100 links, historically used in land measurement.
Cadastral Survey: A survey that defines property boundaries and land parcels.

Quick Knowledge Check

What is the exact conversion rate from Foot (US survey) to Chain?

0.0151515455

0.1

0.066

Which unit is defined as 66 feet?

Foot (US survey)

Chain

International foot

For what purpose is converting Foot (US survey) to Chain most commonly used?

Modern construction planning

Interpreting historical land surveying data

International trade

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