What is a length converter?

A length converter helps you convert between different units of length quickly and accurately.

How do I convert fathom to chain (US survey)?

Simply enter the value in the fathom input field, and the converter will show you the equivalent value in chain (US survey) instantly.

Is this length converter free to use?

Yes, this length converter is completely free and easy to use for all your conversion needs.

Can I switch between fathom and chain (US survey) easily?

Yes, there is a switch button provided to quickly swap the conversion direction between fathom and chain (US survey).

How accurate are the conversion results?

The conversion results are calculated using precise formulas to ensure accuracy for most practical purposes.

Convert fathom to chain (US survey) Online | Free Length Converter

From:		fathom
To:		chain (US survey)

Fathom

A fathom is a unit of length traditionally used to measure the depth of water. It equals 6 feet or approximately 1.8288 meters.

Originating from the Old English word fæðm, meaning "to embrace" or "outstretched arms," the fathom was based on the average distance between a person's outstretched arms. It has been widely used by sailors and navigators to estimate sea depths and underwater distances.

Key facts:

1 fathom = 6 feet
1 fathom ≈ 1.8288 meters
1 fathom = 2 yards

Though modern sonar and electronic instruments now measure depth more precisely, the fathom remains a traditional unit in nautical contexts, especially in maritime charts and historical references.

Chain (US Survey)

The US survey chain is a unit of length used historically in land surveying in the United States. It is defined as exactly 66 US survey feet, which is slightly longer than the international foot. Since one US survey foot equals about 0.3048006096 meters, the US survey chain is approximately 20.11684 meters long.

Like the standard chain, it is divided into 100 links, each measuring 0.66 US survey feet. The US survey chain was widely used in the Public Land Survey System to measure land parcels and boundaries.

Key facts:

1 US survey chain = 66 US survey feet
1 US survey chain ≈ 20.11684 meters
10 US survey chains = 1 furlong
80 US survey chains = 1 US survey mile

Though the US survey foot and chain are being phased out in favor of international units, the US survey chain still appears in historical land records and some legal contexts.

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