What is a chain (US survey) unit?

It is a traditional unit of length equal to 66 US survey feet, historically used in U.S. land surveying and cadastral work.

What does one terameter represent?

A terameter is an SI-derived length unit equal to one trillion metres, used for expressing very large distances like planetary orbits.

Why convert from chain to terameter?

To relate historical surface measurements to enormous astronomical distances for interdisciplinary studies in geodesy and planetary science.

How to Convert from Chain (US survey) [ch] to Terameter [Tm]

Convert lengths from the traditional US survey chain unit (ch) to the astronomical-scale terameter (Tm) with this online length unit converter tool. Understand usage, conversion steps, and example values.

Chain (US survey) [ch]

Terameter [Tm]

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

Chain (US survey) [ch] to Terameter [Tm] Conversion Table

Chain (US survey) [ch]	Terameter [Tm]

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 Terameter [Tm] Conversion Table
Chain (US survey) [ch]	Terameter [Tm]

Explore More Length Units Converter

What Is This Tool?

This tool enables converting length measurements from the US survey chain, a historic land surveying unit, to the terameter, an SI unit representing extremely large distances in planetary and astronomical contexts.

How to Use This Tool?

Enter the length value in chain (US survey) units.
Select 'chain (US survey) [ch]' as the starting unit and 'terameter [Tm]' as the target unit.
Initiate the conversion to get the corresponding length in terameters.

Key Features

Converts chain (US survey) units to terameters accurately following official definitions.
Handles legacy surveying units and huge astronomical scale units in a single interface.
Browser-based and easy to use without requiring installation.

Examples

10 chain (US survey) equals approximately 2.011684023368e-10 terameters.
100 chain (US survey) converts to about 2.011684023368e-9 terameters.

Common Use Cases

Translating historical land survey distances into modern large-scale units.
Integrating legacy terrestrial measurements with astronomical data for planetary science.
Digitizing and interpreting cadastral survey records in geodesy and mapping.

Tips & Best Practices

Verify the context of measurement when converting very small terrestrial units to astronomical scales.
Use this tool to assist in understanding the scale differences between land survey units and space distances.
Keep in mind the traditional nature of the US survey foot which may affect precise conversions.

Limitations

The chain (US survey) is a small terrestrial unit and conversion yields extremely small values in terameter units.
Results have limited practical use outside specialized academic or scientific fields.
Conversion precision may be affected by historic variations in the US survey foot and rounding.

Frequently Asked Questions

What is a chain (US survey) unit?: It is a traditional unit of length equal to 66 US survey feet, historically used in U.S. land surveying and cadastral work.
What does one terameter represent?: A terameter is an SI-derived length unit equal to one trillion metres, used for expressing very large distances like planetary orbits.
Why convert from chain to terameter?: To relate historical surface measurements to enormous astronomical distances for interdisciplinary studies in geodesy and planetary science.

Key Terminology

Chain (US survey) [ch]: A traditional length unit equal to 66 US survey feet, used historically in American land surveying.
Terameter [Tm]: An SI unit of length equal to 10^12 metres, representing very large distances such as those in astronomy.
US survey foot: A historic unit of length used in the United States, forming the basis of the chain measurement.

Quick Knowledge Check

Which unit is traditionally used in U.S. land surveying?

Terameter

Chain (US survey)

Meter

One terameter equals how many metres?

One million metres

One trillion metres

One thousand metres

Why might the chain-to-terameter conversion have limited practical use?

Because chain is a large unit

Because the resulting values are extremely small

Because terameter is less precise

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