Konvertibilität (lat. convertere: conversions) in is such as foreigners by the central bank of a country guaranteed right to be allowed to do their currency for an unlimited period into another currency conversions. In the case that the gold standard and/or. Bimetalism in the country concerned applies, can the conversion for thatCurrency also in gold and/or. Silver meant its. A special case is the Ausländerkonvertibilität, with which only the right to exchange is granted to foreigners. The Konvertibilität facilitates the world trade. Convertible currencies do not possess alone in the country validity, which publishes them (exchange control). For example was the Markthe GDR not convertibly.