Unit Metadata

Non-localized unit metadata includes unit conversions and unit preferences. This data is found in common/supplemental/units.xml.

All simple units known to CLDR (units without a dimensionality or SI prefix) should have a <convertUnit/> entry.

The following three guidelines are used to determine whether a proposed unit preference should be added to units.xml:
  1. Usage needs to be reasonably broad
  2. Country category to be captured needs to be major countries
  3. Additional usage has to contrast with the default