EuroVoc currently exists not only in 22 official EU languages (Bulgarian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish and Swedish), but also in Basque, Catalan, Croatian, Russian and Serbian. Further non-official translations exist.
The number of Eurovoc users and language versions is steadily increasing. The thesaurus covers the major interests of the involved institutions. It is hierarchically organised into 21 fields and - at the next level - into 127 micro-thesauri, with altogether about 6,700 descriptor terms (classes). The maximum depth of the hierarchy is 8 levels. To browse the thesaurus, see the EuroVoc web site.