This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


is a unit of length.
  • Chain is equivalent to approximately 20.1168 Meter (SI units).
  • Chain is equivalent to 66 Foot.
  • Convert[n Chain, newunits]converts n Chain to a form involving units newunits.
  • Chain is typically abbreviated as ch.