What is a fathom (US survey)?

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

How many meters are in one fathom (US survey)?

One US survey fathom equals exactly 7200/3937 metres, approximately 1.8288036576 meters.

Why convert fathoms to kilometers?

Converting fathoms to kilometers helps update or interpret legacy maritime data into the modern metric system, which is commonly used in mapping and engineering.

How to Convert from Fathom (US survey) [fath] to Kilometer [km]?

Convert length measurements from fathom (US survey) [fath] to kilometer [km] using this easy-to-use online converter. Ideal for maritime, hydrographic, and legacy survey data conversions.

Fathom (US survey) [fath]

Kilometer [km]

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

Fathom (US survey) [fath] to Kilometer [km] Conversion Table

Fathom (US survey) [fath]	Kilometer [km]

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 Kilometer [km] Conversion Table
Fathom (US survey) [fath]	Kilometer [km]

Explore More Length Units Converter

What Is This Tool?

This unit conversion tool allows you to convert lengths from the US survey fathom unit to kilometers. It is designed to help translate maritime and hydrographic measurements from legacy US survey units into modern metric units.

How to Use This Tool?

Enter the length value in fathoms (US survey) you wish to convert.
Select the input unit as fathom (US survey) and the output unit as kilometer.
Click the convert button to see the corresponding length in kilometers.

Key Features

Converts length values from fathom (US survey) to kilometers accurately based on official conversion rates.
Helps reconcile legacy maritime and hydrographic data with modern metric measurements.
Browser-based and easy to use without any installation.

Examples

10 fathoms (US survey) equals 0.018288037 kilometers.
100 fathoms (US survey) equals 0.18288037 kilometers.

Common Use Cases

Converting water depths and soundings from historical hydrographic surveys.
Specifying lengths of mooring lines or anchor cables in maritime operations.
Translating legacy survey data using US survey units into metric for modern mapping and engineering.

Tips & Best Practices

Always verify whether the fathom used is US survey or international when converting for precision.
Use this converter primarily for legacy or hydrographic data needing metric translation.
Double-check conversions for large distances to minimize rounding errors in navigational contexts.

Limitations

The US survey fathom slightly differs from the international fathom, which may affect accuracy if not considered.
This conversion is mainly suited for legacy and nautical data rather than general modern length measurements.
Rounding errors can accumulate when converting very large distances impacting navigational precision.

Frequently Asked Questions

What is a fathom (US survey)?: The US survey fathom is a non-SI unit of length equal to exactly 6 US survey feet, used mainly in nautical and hydrographic measurements.
How many meters are in one fathom (US survey)?: One US survey fathom equals exactly 7200/3937 metres, approximately 1.8288036576 meters.
Why convert fathoms to kilometers?: Converting fathoms to kilometers helps update or interpret legacy maritime data into the modern metric system, which is commonly used in mapping and engineering.

Key Terminology

US survey fathom: A non-SI length unit equal to 6 US survey feet, used mainly in nautical and hydrographic contexts.
Kilometer (km): An SI derived unit of length equal to 1,000 metres, used for expressing large distances in various fields.
Hydrographic surveying: The science of measuring and describing features that affect maritime navigation and marine activities.

Quick Knowledge Check

What is the primary use of the US survey fathom?

Measuring terrestrial building heights

Recording water depths and nautical line lengths

Calculating airplane altitudes

How many kilometers are equivalent to 1 fathom (US survey)?

0.0018288037 km

0.18288037 km

1.000000 km

Which context primarily requires converting fathoms to kilometers?

Maritime navigation and hydrographic surveying

Cooking and food recipes

Daily jogging distances

Share Us

Similar Calculators

Online Surface Current Density Units Converter Online Heat Flux Density Units Converter Online Heat Density Units Converter Online Weight and Mass Units Converter Online Flow Molar Units Converter