Czech Koruna country flag

Czech Koruna

CZK

Bulgarian Lev country flag

Bulgarian Lev

BGN

Лв.
Czech Koruna
The koruna, or crown (sign: Kč; code: CZK, Czech: koruna česká), has been the currency of the Czech Republic since 1993. The koruna is one of the European Union's seven currencies, and the Czech Republic is legally bound to adopt the euro in the future. The official name in Czech is koruna česká (plural koruny české, though the zero-suffixed genitive plural form korun českých is used on banknotes and coins of value 5 Kč or higher). The ISO 4217 code is CZK and the local acronym is Kč, which is placed after the numeric value (e.g., "50 Kč") or sometimes before it (as is seen on the 10-koruna coin). One crown is made up of 100 hellers (abbreviated as "h", official name in Czech: singular: haléř, nominative plural: haléře, genitive plural: haléřů – used with numbers higher or equal to 5 – e.g. 3 haléře, 8 haléřů), but hellers have now been withdrawn from circulation, and the smallest unit of physical currency is 1 Kč.
Bulgarian Lev
The lev (лев; plural: лева, левове; lev, leva, levove; ISO 4217 code: BGN) was the currency of Bulgaria from 1880 to 2025. The euro replaced the lev on 1 January 2026; during the cash changeover period (1–31 January 2026), the lev and the euro circulated in parallel for cash payments, and from 1 February 2026 the euro became the sole legal tender in Bulgaria. The name lev derives from an archaic Bulgarian word meaning "lion" (modern лъв, lǎv, IPA: [ɫɤf]). The lev was subdivided into 100 stotinki (стотинки; singular: стотинка, stotinka); the term is derived from the Bulgarian word for "hundred" (сто, sto) and is modelled on the French centime. On Bulgarian euro coinage, the denominations below one euro use the inscriptions СТОТИНКА / СТОТИНКИ as the Bulgarian equivalent of "cent". Under a currency board introduced in 1997, the lev was initially pegged to the Deutsche Mark (1,000 BGL = 1 DEM). In 1999, the lev was redenominated at 1000:1 with 1 new lev (1 BGN) equal to 1 DEM. Subsequently the peg was shifted to the euro at a fixed rate of 1 EUR = 1.95583 BGN. The lev joined the European Exchange Rate Mechanism (ERM II) on 10 July 2020 at the same rate until ultimately exiting both the ERM II and the currency board upon joint the eurozone on 1 January 2026.