Data sources and limits
This converter uses ECB/Frankfurter for daily reference rates and recent history. Open ER API is an alternate latest-rate source; its Open Access endpoint updates once per day and has no history chart in this tool. Rates By Exchange Rate API.
Rate History
Load exchange-rate data to draw the chart.
How to use and read the result
Enter an amount, choose both currencies and a source, then convert. The displayed rate is a reference estimate; check your provider before a payment or other important decision.
FAQ
Where do the exchange rates come from?
ECB/Frankfurter supplies daily reference rates and recent history. Open ER API is an alternate latest-rate source.
How often are the rates updated?
ECB/Frankfurter reference rates are usually updated once each working day around 16:00 CET. Open ER API Open Access rates update once per day. A cached value may appear if a request fails.
Why is my bank or card rate different?
Banks, card issuers, and payment providers may add spreads, fees, and timing rules. This result is a reference estimate, not their final rate.
Does Open ER show history in this tool?
No. Open ER provides the alternate latest rate only. Select ECB/Frankfurter to view the history chart.
Can I use this for trading or final accounting?
No. Use it for planning only. It excludes spreads, fees, settlement timing, forecasts, tax records, and provider-specific rules.
What does the shared URL keep?
It keeps the amount, currencies, source, and history window. It does not freeze the rate, so reopening it may show a newer value.
How the conversion works
The amount is multiplied by the selected source’s reference rate. ECB/Frankfurter supplies the history chart; Open ER supplies only its daily alternate latest rate in this tool.
Exchange rates change rapidly. Always double-check critical transactions with your bank or card issuer. This calculator is provided for informational purposes only.