What is a chain (US survey)?

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

What does Earth's equatorial radius represent?

It is the distance from Earth's center to the equator measured along the equatorial plane, standardized at 6,378,137 meters according to the WGS84 reference.

Why convert chain (US survey) to Earth's equatorial radius?

This conversion helps relate localized survey distances to global geodetic frameworks for mapping, navigation, and aerospace applications.

How to Convert from Chain (US survey) [ch] to Earth's Equatorial Radius

Learn how to convert lengths measured in chain (US survey) [ch] to the Earth's equatorial radius with an easy-to-use online converter. Understand the relationship between these units for surveying and geodesy applications.

Chain (US survey) [ch]

Earth's equatorial radius

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

Chain (US survey) [ch] to Earth's equatorial radius Conversion Table

Chain (US survey) [ch]	Earth's equatorial radius

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 Earth's equatorial radius Conversion Table
Chain (US survey) [ch]	Earth's equatorial radius

Explore More Length Units Converter

What Is This Tool?

This unit converter transforms lengths from the chain (US survey) unit, traditionally used in U.S. land surveying, into the Earth's equatorial radius, a fundamental geodetic measurement used in cartography, geodesy, and aerospace engineering.

How to Use This Tool?

Input the length value in chain (US survey) units
Select 'chain (US survey) [ch]' as the source unit
Choose 'Earth's equatorial radius' as the target unit
Click convert to get the equivalent length in Earth's equatorial radius units

Key Features

Supports conversion from chain (US survey) to Earth's equatorial radius using defined conversion rates
Browser-based tool for quick and easy length unit transformations
Facilitates integration of historical land survey data with global geodetic references

Examples

10 chains (US survey) convert to 0.000031540193776388 Earth's equatorial radius
100 chains (US survey) convert to 0.00031540193776388 Earth's equatorial radius

Common Use Cases

Interpreting historical U.S. land deeds and surveying records
Converting legacy survey lengths for mapping and GIS applications
Relating local land measurements to global Earth-scale geodetic references
Supporting aerospace engineering calculations involving Earth dimensions

Tips & Best Practices

Ensure accurate input values to maintain conversion integrity
Understand the scale difference between small survey units and Earth's radius
Use the conversion to bridge local survey data with global reference models

Limitations

Conversion results are very small fractions of the Earth's equatorial radius due to scale differences
Requires careful interpretation to avoid confusion in practical contexts involving differing unit magnitudes

Frequently Asked Questions

What is a chain (US survey)?: A chain (US survey) is a traditional length unit equal to 66 US survey feet, used historically in U.S. land surveying and subdivided into 100 links.
What does Earth's equatorial radius represent?: It is the distance from Earth's center to the equator measured along the equatorial plane, standardized at 6,378,137 meters according to the WGS84 reference.
Why convert chain (US survey) to Earth's equatorial radius?: This conversion helps relate localized survey distances to global geodetic frameworks for mapping, navigation, and aerospace applications.

Key Terminology

Chain (US survey): A length unit equal to 66 US survey feet, historically used for land surveying in the U.S.
Earth's Equatorial Radius: The distance from Earth's center to the equator along the equatorial plane, approximately 6,378.137 kilometers.
WGS84 reference ellipsoid: A standard geodetic model defining Earth's shape, including its equatorial radius.

Quick Knowledge Check

What traditional unit is equal to 66 US survey feet?

Link

Chain (US survey)

Foot

What is Earth's equatorial radius used for?

Mapping and geodesy

Cooking measurements

Electronic signal strength

How do you start converting chain (US survey) to Earth's equatorial radius?

Enter the value in chains

Enter the value in meters

Select the radius value

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