What is a length converter?

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

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

Simply enter the value in the perch input field, and the converter will show you the equivalent value in fathom (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 perch and fathom (US survey) easily?

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

How accurate are the conversion results?

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

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

From:		perch
To:		fathom (US survey)

Perch

A perch is an old unit of length that is synonymous with the rod or pole, commonly used in land measurement and surveying. It measures 16.5 feet, 5.5 yards, or approximately 5.0292 meters.

The perch was widely used in England and later in the United States for measuring plots of land, especially before the widespread adoption of the metric system. It was also used to describe area when squared (square perch).

Key points:

1 perch = 16.5 feet
1 perch = 5.5 yards
1 perch ≈ 5.0292 meters
4 perches = 1 chain
40 perches = 1 furlong

While largely obsolete today, the term perch still appears in historical land deeds, legal documents, and some traditional surveying contexts.

Fathom (US Survey)

The fathom (US survey) is a unit of length used in U.S. surveying and nautical contexts, defined as exactly 6 US survey feet. Since one US survey foot is approximately 0.3048006096 meters, the US survey fathom measures about 1.828804 meters.

Like the international fathom, it is primarily used to measure water depths and underwater distances in marine navigation and surveying.

Key details:

1 US survey fathom = 6 US survey feet
1 US survey fathom ≈ 1.828804 meters
1 fathom = 2 yards

Though the difference between the US survey fathom and the international fathom is very small, the US survey units are being phased out in favor of international standards, but they still appear in some legal and historical surveying documents.

No conversions available for length.