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Central bank rate decisions are the single biggest driver of exchange rates. Learn what the Fed, ECB, and other major central banks actually do โ and how it ripples through to your currency.
Every major economy has a central bank that sets a 'policy rate' โ the rate at which it lends to commercial banks (or, equivalently, the rate it pays on banks' reserves). In the US this is the federal funds rate target; in the eurozone, the ECB's deposit facility rate; in the UK, the Bank Rate. This single number is the anchor for all other interest rates in the economy โ mortgages, savings, business loans โ and is the most powerful tool the central bank has.
When a central bank raises its policy rate, investors holding that country's bonds and bank deposits earn more. International investors then sell other currencies to buy the higher-yielding one, pushing its exchange rate up. This is why the US dollar tends to strengthen sharply when the Fed signals rate hikes faster than other central banks โ a dynamic that was very visible in 2022โ2023.
Markets price in expected rate moves weeks or months in advance. By the time a rate hike is announced, the currency has usually already moved. The market reaction on decision day is driven by the surprise versus expectations โ a 25 bp hike when 50 bp was expected can actually weaken the currency. Read the 'dot plots,' forward guidance, and press conferences, not just the rate change itself.
The six central banks that move currencies the most are the US Federal Reserve (8 meetings/year), European Central Bank (8/year), Bank of Japan (8/year), Bank of England (8/year), Swiss National Bank (4/year), and Bank of Canada (8/year). Their schedules are published a year ahead. If you have a large currency conversion planned, check whether a major central bank meeting falls within a few days โ and ask yourself whether you can wait until after.
Beyond setting a rate, central banks also buy or sell government bonds to inject or withdraw cash from the financial system. Quantitative easing (QE) โ buying bonds โ tends to weaken a currency by expanding the money supply. Quantitative tightening (QT) โ letting bonds roll off the balance sheet โ tightens supply and supports the currency. These programs work in the background but have produced some of the largest currency moves of the last fifteen years.
For a one-off remittance or travel exchange, the cost difference of timing around a central bank decision is usually smaller than the cost of using a high-fee provider. For larger transfers (USD 50,000+), it can be worth checking the upcoming Fed/ECB/BoE meeting calendars and either acting before a likely surprise or waiting until the dust settles. For business cashflow, consider a forward contract rather than trying to time the decision.
Use our live converter with real-time rates and historical charts.