Currency Is Czech Koruna, Not Euro
Czechia uses the Czech Koruna (CZK/Kc), not the Euro, despite being in the EU. Withdraw CZK from ATMs upon arrival for the best rates. Avoid airport exchange counters and tourist-zone exchange offices which charge high commissions and offer poor rates. When an ATM asks if you want to be charged in your home currency, always choose 'No' and pay in CZK to avoid unfavorable dynamic currency conversion.