As of Version 9.0, unit functionality is built into the Wolfram Language

is a dimensionless measure of plane angle.


  • To use Radian, you first need to load the Units Package using Needs["Units`"].
  • Convert[n Radian,newunits] converts n Radian to a form involving units newunits.
  • 2 Pi Radian is equivalent to 360 Degree.
  • Radian is typically abbreviated as rad.