The total amount of United States dollars in the world includes physical cash and digital bank money created through the financial system. Physical currency in circulation runs into the trillions of dollars when counting both coins and paper bills. However, most dollars exist only as electronic entries in bank accounts, payment platforms, and institutional ledgers rather than printed notes. Economists track different measures like the monetary base and broader money supply, each capturing larger circles of dollar-denominated assets. Because money is constantly created and destroyed through lending and repayment, the exact total changes over time and is regularly updated.