What is a link (US survey) unit?

It is a historic land measurement equal to 1/100 of a Gunter's chain, approximately 0.201168 meters, used in US land surveying.

What does the astronomical unit represent?

The astronomical unit is exactly 149,597,870,700 meters and serves as a standard scale for distances within the Solar System.

Why would I convert from links to astronomical units?

To relate small legacy terrestrial survey measurements to astronomical distances for scientific or geodesy purposes.

How to Convert from Link (US survey) [li] to Astronomical unit [AU, UA]

Learn how to convert length measurements from link (US survey) units to astronomical units (AU, UA) with this easy-to-use online converter tool. Understand their definitions, uses, and applications in surveying and astronomy.

Link (US survey) [li]

Astronomical unit [AU, UA]

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Link (US survey) [li] to Astronomical unit [AU, UA] Conversion Table

Link (US survey) [li]	Astronomical unit [AU, UA]

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.

Link (US survey) [li] to Astronomical unit [AU, UA] Conversion Table
Link (US survey) [li]	Astronomical unit [AU, UA]

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What Is This Tool?

This online converter transforms measurements from the link (US survey), a historical land surveying unit, into astronomical units (AU, UA), which represent distances used in astronomy and space engineering.

How to Use This Tool?

Enter the value in link (US survey) units you want to convert
Select link (US survey) as the input unit and astronomical unit (AU, UA) as the output unit
Click convert to see the equivalent distance in astronomical units
Use the results for scientific, historical, or engineering analysis

Key Features

Converts lengths from link (US survey) to astronomical units accurately
Supports conversion between a small terrestrial length unit and a large astronomical distance unit
Useful for integrating legacy land survey records with space-scale data
Browser-based and easy to use with clear input and output

Examples

10 links (US survey) equal approximately 1.3447277117488e-11 AU
1000 links (US survey) equal approximately 1.3447277117488e-9 AU

Common Use Cases

Interpreting historic US land survey distances in modern contexts
Cadastral mapping and boundary analysis with legacy survey data
Converting terrestrial survey lengths into astronomical scales for research
Supporting geodesy, astronomy, and space mission planning

Tips & Best Practices

Ensure the input value in links is accurate for meaningful conversion
Understand the scale difference when interpreting results in AU
Use this tool to bridge historical land data with astronomical distance requirements
Apply conversions mainly for scientific comparisons or theoretical purposes

Limitations

Conversion results in extremely small decimal values due to scale difference
Limited practical use outside theoretical or scientific fields
Precision limitations in original survey data may affect accuracy of results

Frequently Asked Questions

What is a link (US survey) unit?: It is a historic land measurement equal to 1/100 of a Gunter's chain, approximately 0.201168 meters, used in US land surveying.
What does the astronomical unit represent?: The astronomical unit is exactly 149,597,870,700 meters and serves as a standard scale for distances within the Solar System.
Why would I convert from links to astronomical units?: To relate small legacy terrestrial survey measurements to astronomical distances for scientific or geodesy purposes.

Key Terminology

Link (US survey): A historic length unit equal to 1/100 of a Gunter's chain or about 0.201168 meters, used in US land surveying.
Astronomical Unit (AU, UA): A standard length unit of exactly 149,597,870,700 meters representing average Earth-Sun distance used in astronomy.
Gunter's chain: A surveying unit equal to 66 US survey feet; the link is 1/100 of this measure.

Quick Knowledge Check

What is one link (US survey) defined as?

One tenth of a chain

One hundredth of a Gunter's chain

One meter

What is an astronomical unit used for?

Measuring small land plots

Expressing orbital distances in the Solar System

Measuring lengths in inches

Why might conversions from links to astronomical units have limited practical use?

Because the units are the same scale

Due to large scale difference causing very small decimal results

Because links measure mass, not length

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