Which is the largest component of money in circulation?

The largest component of money in circulation is typically M2 money supply, which includes cash, checking deposits, and easily convertible near-money assets like savings accounts and money market funds. Among these, checking deposits are often the most significant part, as they are widely used for everyday transactions. However, cash (physical currency) also plays a crucial role, especially in informal economies and small transactions. Overall, the exact composition can vary by country and economic conditions.