Money Supply Calculator (Money in Circulation)

M0, M1, and M2 are monetary aggregates — measures of the money supply in an economy computed from their components. M0 (monetary base) = currency + bank reserves. M1 = currency + demand deposits + traveler's checks + other checkable deposits. M2 = M1 + savings + small-denomination time deposits + retail money market funds. The larger the number, the broader the coverage of financial instruments.

M1 is formed from currency in circulation, demand deposits, traveler's checks, and other checkable deposits. M2 adds savings deposits, small-denomination time deposits, and retail money market funds on top of all M1 components. M0 is formed from currency plus bank reserves. This calculator sums the components you enter exactly following these definitions.

M3 is a broader monetary aggregate than M2 (covering large time deposits, repurchase agreements, and Eurodollars). The US Federal Reserve Board discontinued publication of the M3 aggregate on March 23, 2006 (announced November 10, 2005, in the federalreserve.gov H.6 statistical release), on the grounds that M3 provided no additional information beyond M2 and its collection costs exceeded the benefits. Fact as of October 2026: the Fed no longer publishes M3, so this calculator only computes M0, M1, and M2.

In the simple money multiplier model, the money supply = monetary base × money multiplier (m). That is, the same monetary base can support different money supplies depending on the reserve ratio, currency drain, and excess reserves. Mode 3 of this calculator computes money supply from the monetary base and multiplier; to compute the multiplier value itself, use the money multiplier calculator at /tools/money-multiplier/.

M1 measures the most liquid money ready to be spent: cash and funds in accounts that can be withdrawn at any time. M2 measures broader liquidity, including savings and time deposits that take time or conditions to liquidate. Analysts use M1 to see directly available purchasing power, while M2 is used to see the public's overall fund availability. Both are descriptive and not policy recommendations.

Bank Indonesia publishes money supply statistics, including M1 (narrow money) and M2 (broad money), in its Indonesian Financial Statistics (SEKI) publication. Component definitions follow each country's central bank framework, so details may differ from the US convention in this calculator. For the latest official figures, refer directly to Bank Indonesia's publications.

This money supply calculator computes AGGREGATES (M0/M1/M2) from their components: you enter currency, demand deposits, savings, and so on, then the tool sums them. The money multiplier calculator computes the MULTIPLIER (m): from the reserve requirement ratio, currency drain ratio, and excess reserve ratio, e.g., m = (1+c)/(rr+e+c), then money supply = base × m. The two complement each other: aggregates answer "how big it is", the multiplier answers "how many times the monetary base is multiplied".