The RemoveUnit(unit, opts) function removes the unit unit from the Unit Converter.

This procedure accepts symbols and variations in spelling. For example, $\frac{m}{s}$, meters/second, and metre/second represent the same dimension in the Unit Converter.

You describe the options of the unit by using the optional arguments. The opts argument can contain the following equation.

'make'=truefalse

This option specifies whether the conversion tables are rebuilt after the unit has been removed from the Unit Converter.  By default, this option is set to true. If $10$ or more dimensions or units are added to or removed from the Unit Converter in the same execution group, it is recommended that you execute the Units[Converter][MakeConverter]() calling sequence afterward.

$\mathrm{with}\left(\mathrm{Units}\left[\mathrm{Converter}\right]\right)\:$

$\mathrm{RemoveUnit}\left(\frac{'\mathrm{cm}'}{'s'}\right)$

$\mathrm{AddUnit}\left(\frac{'\mathrm{parsec}'}{'\mathrm{year}\left[\mathrm{Julian}\right]'}\,'\mathrm{display}'=''parsecs\; per\; Julian\; year''\right)$

$\mathrm{RemoveUnit}\left(\frac{'\mathrm{parsec}'}{'\mathrm{year}\left[\mathrm{Julian}\right]'}\right)$