// free-toolUSD ⇄ EUR
Type an amount, pick two currencies and the conversion updates live. Rates are the European Central Bank's official daily reference rates (via the free, open-source Frankfurter API), cached on this site and refreshed once per business day — the as-of date is always shown. These are reference rates for information, not real-time trading quotes.
no signup · no watermark · unlimited use
Rates update once per business day around 16:00 CET, when the ECB publishes its reference rates. The exact as-of date is displayed with every conversion.
Genuinely real-time FX data is paid on every provider. Daily ECB reference rates are the free, official standard — ideal for estimates, invoices and planning, not for executing trades.
No — the tool uses the open Frankfurter API with a server-side daily cache, so it's free with no signup for you and no key to manage.
I build fast, privacy-first web applications with Next.js — these converters run entirely in the browser, and yours can too.