What is an Exchange Rate in Forex?

Exchange Rate
Forex Trading Glossary

Quick Answer: An exchange rate is the price of one currency in terms of another (e.g., EUR/USD = 1.0850 means 1 Euro costs $1.0850). Rates fluctuate constantly based on interest rates, economic data, central bank policy, and market sentiment.

What is an Exchange Rate in Forex?

An exchange rate is the price of one currency expressed in terms of another. It tells you how much of one currency you need to buy a unit of another currency. This rate constantly fluctuates based on supply and demand in the global forex market.

How Exchange Rates Are Quoted

Exchange rates appear as currency pairs with a numerical value:

  • EUR/USD = 1.0850: 1 Euro costs $1.0850 US Dollars
  • GBP/USD = 1.2650: 1 British Pound costs $1.2650 US Dollars
  • USD/JPY = 149.50: 1 US Dollar costs ¥149.50 Japanese Yen

What Moves Exchange Rates?

Exchange rates change constantly due to:

  • Interest rate differentials: Higher rates attract foreign capital
  • Economic data: GDP, employment, inflation reports
  • Central bank policy: Monetary policy decisions and guidance
  • Political events: Elections, policy changes, geopolitical tensions
  • Market sentiment: Risk-on vs risk-off trading flows
  • Trade balances: Import/export dynamics

Fixed vs Floating Exchange Rates

TypeHow It WorksExamples
FloatingMarket determines rate freelyUSD, EUR, GBP, JPY
Fixed (Pegged)Government maintains specific rateHKD (pegged to USD)
Managed FloatMostly free but central bank intervenesCNY (Chinese Yuan)

Practical Example

In December 2021, the EUR/USD exchange rate was 1.1350. By September 2022, it had fallen to 0.9550 (parity was 1.0000). What happened? The Federal Reserve raised interest rates aggressively from 0% to 4% while the ECB kept rates at 0%. The interest rate differential made the Dollar far more attractive than the Euro, causing the exchange rate to shift dramatically. Traders who understood this central bank divergence could profit from the 17% move in the exchange rate.

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