Tukuk-OSWorld Currency Converter
30 currencies · ECB reference rates · free, no account
Convert over thirty world currencies instantly using the European Central Bank’s own daily reference rates, served key-free by frankfurter.dev. These are the mid-market benchmark rates banks and journalists quote — what a currency is worth between institutions, before any exchange counter adds its margin. That honesty matters: a airport kiosk will never give you exactly these numbers, and we say so instead of pretending to.
Quick amounts
| USD | PLN |
|---|---|
| 1 USD | 3.96 PLN |
| 10 USD | 39.56 PLN |
| 100 USD | 395.63 PLN |
| 1,000 USD | 3,956.3 PLN |
| 10,000 USD | 39,563 PLN |
How the ECB fixing works
Every weekday the ECB surveys national central banks around 14:15 CET and publishes one fixing per currency pair. Weekends and holidays hold the last fixing — which is exactly why your Monday morning screen still shows a Saturday date. The full table of every rate is on the rates page; popular pairs have permanent pages below.
Travel and remittance tip
Compare any quote you receive against 1 USD = this page’s figure above: the gap is the dealer’s margin plus fees. Dynamic currency conversion (being charged in your home currency abroad) typically hides 3–7% inside the “convenience” — paying in the local currency is almost always cheaper.