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The most commonly used currency is the US Dollar, followed by the Euro and the Japanese Yen not far behind.

Now, the most commonly used cryptocurrencies in the world are Bitcoin, with Ethereum and Litecoin following suit. This is probably propelled by how old all of these cryptocurrencies are, being one of the first ones to become popular, and how widespread and common they are among crypto trading websites like Coinbase and Blockchain.com.

The most and commonly used currency in the world today is the US Dollars.
This is not far fetched as you can find an exchange for it in almost every country you visit.

United States Dollar

The money that occupies the first position as the most widely used currency in the world is the United States dollar. The official money used in Uncle Sam's country is coded ISO 4217 USD and symbols $. This top position deserves to be occupied by this currency considering the US dollar widely used internationally as a foreign exchange reserve currency outside the US. In addition, the country of Timor Leste which was once one of the provinces in Indonesia also uses this currency. There is also the Zimbabwean state. Once the currency is hyperinflated, the country uses several foreign currencies for the medium of exchange. One of them uses the American dollar.

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