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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.


Chain


A chain is a unit of length traditionally used in land surveying. The most common version is the Gunter’s chain, which equals 66 feet or 22 yards, approximately 20.1168 meters.


The chain was introduced by English clergyman Edmund Gunter in the 17th century to simplify land measurement. One chain consists of 100 links, each 0.66 feet long. It became a standard unit in British and American land surveying and was instrumental in defining land areas, especially in the U.S. Public Land Survey System.


Key Conversions:



  • 1 chain = 66 feet



  • 1 chain = 22 yards



  • 1 chain ≈ 20.1168 meters



  • 10 chains = 1 furlong



  • 80 chains = 1 mile



Though now largely replaced by metric units and modern surveying tools, the chain still appears in older land deeds, maps, and rural property descriptions.




No conversions available for length.

Convert chain (US survey) to Other Length Units

🔄 chain (US survey) to centimeter
🔄 chain (US survey) to inch
🔄 chain (US survey) to millimeter
🔄 chain (US survey) to kilometer
🔄 chain (US survey) to decimeter
🔄 chain (US survey) to micrometer
🔄 chain (US survey) to nanometer
🔄 chain (US survey) to mile
🔄 chain (US survey) to yard
🔄 chain (US survey) to foot
🔄 chain (US survey) to light year
🔄 chain (US survey) to exameter
🔄 chain (US survey) to petameter
🔄 chain (US survey) to terameter
🔄 chain (US survey) to gigameter
🔄 chain (US survey) to megameter
🔄 chain (US survey) to hectometer
🔄 chain (US survey) to dekameter
🔄 chain (US survey) to micron
🔄 chain (US survey) to picometer
🔄 chain (US survey) to femtometer
🔄 chain (US survey) to attometer
🔄 chain (US survey) to megaparsec
🔄 chain (US survey) to kiloparsec
🔄 chain (US survey) to parsec
🔄 chain (US survey) to astronomical unit
🔄 chain (US survey) to league
🔄 chain (US survey) to nautical league
🔄 chain (US survey) to nautical league (int.)
🔄 chain (US survey) to league (statute)
🔄 chain (US survey) to nautical mile (UK)
🔄 chain (US survey) to nautical mile (international)
🔄 chain (US survey) to mile (statute)
🔄 chain (US survey) to mile (US survey)
🔄 chain (US survey) to mile (Roman)
🔄 chain (US survey) to kiloyard
🔄 chain (US survey) to furlong
🔄 chain (US survey) to furlong (US survey)
🔄 chain (US survey) to chain
🔄 chain (US survey) to rope
🔄 chain (US survey) to rod
🔄 chain (US survey) to rod (US survey)
🔄 chain (US survey) to perch
🔄 chain (US survey) to pole
🔄 chain (US survey) to fathom
🔄 chain (US survey) to fathom (US survey)
🔄 chain (US survey) to ell
🔄 chain (US survey) to foot (US survey)
🔄 chain (US survey) to link
🔄 chain (US survey) to link (US survey)
🔄 chain (US survey) to cubit (UK)
🔄 chain (US survey) to hand
🔄 chain (US survey) to span (cloth)
🔄 chain (US survey) to finger (cloth)
🔄 chain (US survey) to nail (cloth)
🔄 chain (US survey) to inch (US survey)
🔄 chain (US survey) to barleycorn
🔄 chain (US survey) to mil
🔄 chain (US survey) to microinch
🔄 chain (US survey) to angstrom
🔄 chain (US survey) to a.u. of length
🔄 chain (US survey) to X-unit
🔄 chain (US survey) to fermi
🔄 chain (US survey) to arpent
🔄 chain (US survey) to pica
🔄 chain (US survey) to point
🔄 chain (US survey) to twip
🔄 chain (US survey) to aln
🔄 chain (US survey) to famn
🔄 chain (US survey) to caliber
🔄 chain (US survey) to centiinch
🔄 chain (US survey) to ken
🔄 chain (US survey) to Russian archin
🔄 chain (US survey) to Roman actus
🔄 chain (US survey) to vara de tarea
🔄 chain (US survey) to vara conuquera
🔄 chain (US survey) to vara castellana
🔄 chain (US survey) to cubit (Greek)
🔄 chain (US survey) to long reed
🔄 chain (US survey) to reed
🔄 chain (US survey) to long cubit
🔄 chain (US survey) to handbreadth
🔄 chain (US survey) to fingerbreadth
🔄 chain (US survey) to Planck length
🔄 chain (US survey) to Electron radius (classical)
🔄 chain (US survey) to Bohr radius
🔄 chain (US survey) to Earth equatorial radius
🔄 chain (US survey) to Earth polar radius
🔄 chain (US survey) to Earths distance from sun
🔄 chain (US survey) to Suns radius
🔄 chain (US survey) to meter
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