How much money is in circulation in the world today?

Answer 1

To make this question answerable in a finite amount of time, let's simplify things and ask, "How much money is there in actual United States dollars?" Since the statistics for the U.S. are easy to come by, we can examine this question in a couple of different ways.

M1 represents all of the currency in the M0 money supply, plus all of the money held in checking accounts and other checkable accounts, as well as all of the money in travelers' checks. In July 2009, the M1 money supply for U.S. dollars equaled about $1,655.6 billion [source: Federal Reserve].

M2 is the M1 supply, plus all of the money held in money market funds, savings accounts and small CDs. In July 2009, the M2 money supply was about $8,326.8 billion [source: Federal Reserve].

M3 is M2 plus all of the large CDs. As of March 2006, the Fed no longer tracks the M3 money stock as an economic indicator. That month, M3 totaled around $10.3 trillion [source: St. Louis Fed].

All told, anyone looking for all of the U.S. dollars in the world in July 2009 could expect to find around $8.3 trillion in existence.