What is the US survey fathom?

The US survey fathom is a non-SI unit of length equal to 6 US survey feet, mainly used for nautical and hydrographic measurements.

What is a long reed unit?

The long reed is a traditional, now-obsolete land measurement unit whose length varied historically by region and period.

Why convert from fathom to long reed?

Converting aids in translating nautical data to historical land measurements, useful for restoring old surveys or analyzing legacy records.

How to Convert from Fathom (US survey) [fath] to Long reed

Learn how to convert measurements from the US survey fathom to the traditional long reed unit with our easy-to-use online converter. Ideal for nautical and historical land measurement tasks.

Fathom (US survey) [fath]

Long reed

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Fathom (US survey) [fath] to Long reed Conversion Table

Fathom (US survey) [fath]	Long reed

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.

Fathom (US survey) [fath] to Long reed Conversion Table
Fathom (US survey) [fath]	Long reed

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What Is This Tool?

This unit converter transforms length values from the US survey fathom, commonly used in nautical contexts, to the long reed, a traditional unit historically applied in land measurements. It helps bridge maritime data with historical surveying records.

How to Use This Tool?

Enter the length value in fathom (US survey) units.
Select fathom (US survey) as the input unit and long reed as the output unit.
Run the conversion to obtain the measurement in long reed.

Key Features

Converts from fathom (US survey) to long reed using the official conversion rate.
Supports interpretation of legacy and historical measurement data.
Browser-based and easy to operate for maritime and land surveying contexts.

Examples

5 fathom (US survey) equals approximately 2.8571485715 long reed.
10 fathom (US survey) converts to about 5.714297143 long reed.

Common Use Cases

Recording water depths and line lengths in maritime operations.
Interpreting historical land deeds and parish records using long reed units.
Reconciling historical survey data with modern metric or customary units.

Tips & Best Practices

Verify conversions against historical sources due to local variations of the long reed.
Be mindful of differences between US survey fathom and international fathom.
Use conversions carefully in scientific or engineering contexts to avoid inaccuracies.

Limitations

The long reed unit varies by locality and time period, affecting conversion accuracy.
Slight differences exist between the US survey fathom and international fathom definitions.
Both units are legacy and non-SI, requiring cautious application in modern calculations.

Frequently Asked Questions

What is the US survey fathom?: The US survey fathom is a non-SI unit of length equal to 6 US survey feet, mainly used for nautical and hydrographic measurements.
What is a long reed unit?: The long reed is a traditional, now-obsolete land measurement unit whose length varied historically by region and period.
Why convert from fathom to long reed?: Converting aids in translating nautical data to historical land measurements, useful for restoring old surveys or analyzing legacy records.

Key Terminology

Fathom (US survey): A unit of length equal to 6 US survey feet, used primarily for measuring water depths and line lengths in nautical contexts.
Long reed: An obsolete traditional unit of length historically utilized in land measurement and local surveying with variable magnitude by place and period.
Non-SI units: Units not part of the International System of Units, often legacy units still used in specialized or historical contexts.

Quick Knowledge Check

What measurement does the fathom (US survey) primarily apply to?

Land surveying

Nautical and hydrographic measurements

Meteorological data

Why might the long reed length vary in conversions?

Different historical sources and localities

Measurement errors

Instrument calibration

What should be considered when using these legacy units in calculations?

Units are modern SI

Conversions require caution to avoid discrepancies

They are universally fixed and precise

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