How the Currency Converter Works
This tool converts amounts between the major world currencies: Euro (EUR), US Dollar (USD), British Pound (GBP), Swiss Franc (CHF), and Japanese Yen (JPY). Rates are updated automatically every day from the European Central Bank via the Frankfurter API.
Live ECB Rates
The rates used are the reference rates published daily by the European Central Bank (ECB). They are updated around 4:00 PM CET each business day.
For real financial operations, keep in mind that banks apply a spread (margin) on the interbank rate. The ECB rate is a market reference, not an operational rate.
How the Calculation Works
The conversion happens in two steps:
- The amount in the source currency is converted to euros (dividing by the rate vs EUR)
- The amount in euros is converted to the target currency (multiplying by the rate vs EUR)
The Bank Spread
When you exchange currency at a bank, airport, or exchange office, the applied rate differs from the interbank rate. The difference (spread) is the intermediary's margin. Typically:
- Online banks: 0.5-1.5% spread
- Traditional banks: 1-3% spread plus fixed fees
- Exchange offices: 3-8% spread
- Credit cards: 1-2% spread (network dependent)