CurrenciesDataContext
Every rate has a source.
Official rates, history and tools for well-weighed decisions.
| Pair | Rate | Change | Date |
|---|---|---|---|
| EUR / PLN →Euro — Polish Zloty | 4.3661 | -0.0030-0.07% | Oct 16, 2026 |
| USD / PLN →US Dollar — Polish Zloty | 3.8952 | -0.0090-0.23% | Oct 15, 2026 |
| EUR / BYN →Euro — Belarusian Ruble | 3.3749 | +0.0043+0.13% | Oct 16, 2026 |
| USD / BYN →US Dollar — Belarusian Ruble | 3.0091 | -0.0022-0.07% | Oct 16, 2026 |
The number matters. So does where it comes from.
Official data gives analysis a firm footing. Fincast shows not only the rate but its source, its date and the rules behind it.
MethodologySource
Rates come straight from the central banks that set them.
Rate date
Every rate shows the date it applies to; every market price, its time in UTC.
Units and gaps
A rate is always per one unit of the base currency, and days without a publication are never filled with invented values.
From watching to a system of your own.
Save favourite pairs, set alerts and follow changes in one place. The public rates are open to everyone; the rest lives in your workspace.
Frequently asked questions
Where do the official rates come from?
They are set and published by central banks: ECB, NBP, NBRB, BCB PTAX, Bank of Canada, Bank of Japan, Fed H.10. Fincast collects each bank's publications and shows every rate with its source and date.
How often is the data updated?
Central banks publish on their working days, usually once a day. Crypto prices move around the clock; the time of each price is shown next to it.
How is an official rate different from my bank’s rate?
An official rate is a central bank’s reference value. Banks and exchange offices set their own buy and sell rates around it, with their spread and fees.