Global Money Supply and Broad Money Definitions
The total amount of money in the world depends on which measure of money supply is used, with the broadest metric being M3, which includes physical cash, demand deposits, savings deposits, money market funds, and other time deposits. According to the latest available data from the Bank for International Settlements and central banks, global M3 exceeds 100 trillion USD when combining all major economies, reflecting both fiat currency and digital bank money in circulation. The narrow money supply M0, which covers only physical banknotes and coins in circulation plus central bank reserves, is far smaller, estimated at around 10 trillion USD globally, with the U.S. Federal Reserve, the European Central Bank, the Bank of Japan, and the People's Bank of China together accounting for the largest shares of physical cash and reserve balances.
M1 and M2 provide intermediate views of money in the world, with M1 adding checkable deposits and travel checks to physical currency, while M2 further includes savings deposits and small time deposits. As of 2025, the United States M2 money supply is over 21 trillion USD, the Eurozone M3 is above 16 trillion EUR, and China's M2 has surpassed 300 trillion CNY, making these three jurisdictions the largest contributors to global money aggregates. The International Monetary Fund tracks these figures through its International Financial Statistics and World Economic Outlook databases, which are updated quarterly and used by analysts to compare money growth rates, inflation pressures, and liquidity conditions across countries.
Physical Cash, Coins, and Central Bank Digital Currency
Physical cash in circulation, including banknotes and coins, represents only a fraction of total global money, with the U.S. dollar, the euro, and the Chinese yuan accounting for the largest share of physical currency in circulation worldwide. The U.S. Bureau of Engraving and Printing reports that the amount of U.S. currency in circulation has grown steadily, exceeding 2.5 trillion USD in 2025, much of it held overseas as a reserve asset and medium of exchange in economies with unstable local currencies. The European Central Bank similarly tracks euro banknote circulation, which surpassed 3 trillion EUR, while the People's Bank of China manages the world's largest cash-in-circulation volume in yuan terms, reflecting the scale of China's retail economy.
Central bank digital currency projects are reshaping how money moves, with China's digital yuan e-CNY pilot expanding to multiple cities and use cases, while the European Central Bank's digital euro project is in its preparation phase with a potential launch in the coming years. The Federal Reserve has published research on a U.S. central bank digital currency but has not yet made a decision on issuance, while the Bank for International Settlements coordinates cross-border CBDC experiments through Project mBridge and other initiatives. These digital forms of money sit at the intersection of M0 and commercial bank money, potentially altering the composition of global money supply without necessarily increasing the total amount of money in the world.
Digital Assets, Bank Deposits, and the Broadest Measures of Money
Beyond traditional money supply measures, digital assets such as Bitcoin and stablecoins represent a newer category of value that functions as money in specific contexts, with the total market capitalization of all cryptocurrencies exceeding 3 trillion USD at peak levels and stablecoin supply exceeding 200 billion USD as of mid-2025. Bitcoin, the largest cryptocurrency by market capitalization, has a fixed supply cap of 21 million coins, with over 19 million already mined, and its price and market cap are tracked by platforms such as CoinMarketCap and CoinGecko. Stablecoins like USDT and USDC, which are pegged to the U.S. dollar and backed by reserves, are increasingly used for payments, remittances, and trading, with their issuers publishing att