Convert furlong (US survey) to nail (cloth) Online | Free Length Converter

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Furlong (US Survey)


The furlong (US survey) is a traditional unit of distance used in U.S. land surveying, defined as 1/8 of a U.S. survey mile, or exactly 660 U.S. survey feet. Since one U.S. survey foot equals approximately 0.3048006096 meters, the US survey furlong is about 201.1684 meters long.


While the difference between the US survey furlong and the international (standard) furlong is extremely small (just a few micrometers), it was significant in precise land measurements, particularly in legal and cadastral surveying contexts.


Key Conversions:



  • 1 US survey furlong = 660 US survey feet



  • 1 US survey furlong ≈ 220 yards



  • 1 US survey furlong ≈ 201.1684 meters



  • 8 US survey furlongs = 1 US survey mile



As of 2023, the U.S. has officially deprecated the use of the survey foot (and by extension the survey furlong) in favor of the international foot, but it may still appear in historical and legal documents.


Nail (Cloth)


A nail is a traditional unit of length used in cloth measurement, equal to 2¼ inches or approximately 5.715 centimeters. It was commonly used by tailors and fabric merchants in England to measure small lengths of fabric.


The term “nail” likely originates from the practice of marking lengths on a measuring stick with notches or nails, making it easy to measure fabric quickly. The nail was a convenient subdivision of the yard, with 1 yard = 16 nails.


Though obsolete today, the nail remains an interesting part of historical textile measurement systems.


Summary:



  • 1 nail = 2¼ inches (5.715 cm)



  • 1 yard = 16 nails



  • Used historically in tailoring and fabric trade



  • Originates from notches or nails on measuring sticks






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