An exchange rate describes one currency in terms of another. Understanding that relationship is a useful starting point for reading financial news.
Base and quote currencies
In EUR/USD, the euro is the base currency and the US dollar is the quote currency. A hypothetical rate of 1.10 means one euro is worth 1.10 US dollars. It is an example, not a current quote.
If that rate rises, the euro has strengthened relative to the dollar. If it falls, the euro has weakened relative to the dollar. A pair describes a relationship; it does not tell you how either currency has moved against every other currency.
What can influence a rate?
Interest-rate expectations, inflation, economic activity and international trade can all affect currencies. Markets respond to expectations as well as published data, so a headline alone may not explain a price movement.
Read the context
Check the pair, source and timestamp before comparing prices. Indicative quotes may be delayed, and different sources may show different reference prices. A chart describes past observations; it does not guarantee future movements.
This article is general education and does not constitute personal investment advice or an offer to trade.