The currency used in Rio de Janeiro and throughout Brazil is the Brazilian Real (BRL). It is divided into 100 centavos. The exchange rate can fluctuate daily, so it is advisable to check the current rates before exchanging. In Rio de Janeiro, you can exchange money at banks, exchange offices and some hotels. Most stores also accept credit and debit cards, especially those associated with international brands such as Visa and Mastercard. It is advisable to inform your bank before traveling abroad to avoid problems when using debit or credit cards.