Most "free" currency converters online quietly want an email address, an API key signup, or a rate-limited trial before showing a real number. This one doesn't need any of that.
Live exchange rate calculator, where the data actually comes from
Rates come from the European Central Bank's official reference rates via the Frankfurter API — a free, open service with no authentication required. Before building this tool, a direct browser fetch test confirmed the API responds with usable data and no CORS restriction, meaning the conversion runs entirely in your browser with no server in between.
Usd to eur converter, and 19 other currencies
Twenty major currencies are supported — USD, EUR, GBP, JPY, CNY, KRW, and more — with a one-click swap button to flip the conversion direction instantly, and the exact rate date always shown next to the result.
Real time currency conversion, what the rate does and doesn't include
The ECB reference rate is the market benchmark, not what you'll actually receive from a bank or card network — those typically add their own markup or conversion fee on top. Use this rate as the baseline to compare against, not as a guarantee of your final exchange rate.