Currency Converter
Convert between world currencies
USD/EUR rate history
About Currency Converter
Currency Converter multiplies your amount by the cross rate between two currencies, taken from the table that ExchangeRate-API publishes once a day (166 currencies when we checked on September 23, 2026). The line under the result says when the rates were published and when the next update is due, so this is a daily reference, not a live market quote, and no bank fee is added. Below the converter, a chart from Frankfurter, which republishes central-bank reference rates, shows the pair over 1 week to 10 years with its high, low, average, and change. The multiplication itself is done by your browser, from the table it downloaded.
How to convert currencies with today's rates
- 1Type the sum to convert in "Amount".
- 2Pick the two currencies in "From" and "To", or use the ⇄ button between them to swap them.
- 3Read the result and both unit rates; open the line ending in "in other currencies" to see the same sum in the most used currencies.
- 4Choose a period from "1W" to "10Y" above the chart, and download the rates of that period as a CSV file if you need them.
Formats and limits
- Currencies
- Every code in the daily ExchangeRate-API table, the 20 most used first, then the others from A to Z; names come from your browser, so a code your browser does not know, such as FOK or KID in some browsers, shows alone
- Rate updates
- Once a day at the source; the page shows the publication time and the next update
- History
- Daily points up to 1Y, weekly over 5Y, monthly over 10Y; not available for 8 of the 166 currencies when we checked on October 3, 2026
- History download
- CSV file with one date and rate per line, named after the pair and the period
- Amount
- Any number, negative included; amounts and results below 1 show up to four significant digits instead of 0.00
Where your amount is processed
Your browser downloads the whole daily table of rates from open.er-api.com, the same request for every visitor, and does the arithmetic itself: the amount never leaves the page. For the chart, the two currency codes you chose are sent to api.frankfurter.dev, without any amount. If the rates cannot load, the message shown is sent, cleaned, to our error log with the tool's name and your browser's name and major version.
Frequently asked questions
How often are the exchange rates updated?
The rates change once a day: ExchangeRate-API publishes one table daily, and the line under the result gives its publication time and the time of the next update. "Refresh rates" downloads the table again, which brings new values only after that next update.
Is this the rate my bank will give me?
No. The page uses the daily rate published by ExchangeRate-API and adds no fee or margin. A bank or card network applies its own rate and charges, so use the result as a reference for budgeting or comparing prices.
Can I see how a rate has changed over time?
Yes. The chart under the converter plots your pair over 1 week; 1, 6, or 12 months; or 5 or 10 years, with its high, low, average, and change; touch or hover the line to read one point, a day, or a week or a month on 5Y and 10Y. Its central-bank reference rates can differ slightly from the daily rate shown above.
Why is there no history for some currencies?
8 of the 166 currencies when we checked on October 3, 2026, among them BGN, CLF, HRK, and ZWL, have no series at Frankfurter, and a few start later, such as ZWG in 2024. The page then says that no history is published, or marks the date it starts, and the conversion above still works.
Tips and tricks
- ✓Leave the page open past the "next update" time, then press "Refresh rates" to load the new table.
- ✓Planning a trip? Keep the same amount and open the list of the most used currencies under the result; for a currency that is not in it, change "To".