A historical currency converter: enter an amount, pick any past date, and get the conversion at the rate that was genuinely in force that day.
Most currency converters answer one question: what is this worth right now. That is the easy question. The harder ones come up constantly and are badly served:
Live converters cannot answer the first two, and none of them answer the third. Rewinded Rate was built for those.
One series is embedded in the site: daily closing rates for 51 currencies against the US dollar, from 2000 onward, sourced from public market data. These are mid-market spot rates, the same family of number that Google and other financial sites quote.
Any pair can be converted, because every currency is held against the dollar and cross rates are derived from that. Weekends and public holidays carry the last published rate forward, since no closing price is published on days the market does not trade.
Raw market feeds contain occasional one-day bad prints — a rate quoted at a fraction of its true value, then back to normal the next day. Those distort any historical chart badly. Every series here is passed through a filter that removes isolated spikes while preserving genuine devaluations, which look different in the data: a real step change persists, a bad print does not.
It will not tell you what your bank will charge. Retail rates always sit below the mid-market rate, and the gap is the provider's margin. That is why the what-if feature exists: enter the rate you were quoted and see, in your own currency, exactly what the spread costs you on your amount.
It is also not a forecasting tool. Nothing here predicts where a rate is going.
Rewinded Rate is an independent project, not affiliated with any bank, exchange house, central bank, or any central bank. The site is supported by advertising, which plays no part in the figures shown — the rates are what the sources say they are.