Productive ToolboxCurrency Converter
Convert between about 30 major currencies at the European Central Bank's daily reference rates, including rates for past dates back to 1999.
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Converting with Reference Rates
This converter uses the European Central Bank's daily euro reference rates, a free and widely trusted source that businesses and accountants use for invoices and reports. Every result shows the date of the rate it used, and you can look up past dates for travel expenses, invoices or old receipts.
Converted amount = Amount × Rate
Reverse rate = 1 ÷ Rate
Cross rate USD→GBP = (EUR→GBP) ÷ (EUR→USD)
Reference rates are mid-market figures. What you receive from a bank or card is typically lower by the provider's margin and fees.
How to Convert Currency
- 1Enter the amount: Type how much you want to convert.
- 2Choose the currencies: Pick the currency you have and the one you want, or tap a popular pair such as USD → EUR; the ⇄ button swaps them.
- 3Pick a date (optional): Leave the date empty for the latest rate, or choose any working day since January 4, 1999, to see the rate on that day.
- 4Read the result: See the converted amount, the rate in both directions, the date of the rate and quick tables for common amounts.
Frequently Asked Questions
Where do the exchange rates come from?
From the euro foreign exchange reference rates the European Central Bank publishes around 16:00 Central European Time on every working day, loaded through the free Frankfurter API. Rates between two non-euro currencies, such as USD to GBP, are calculated through the euro.
Why is my bank's or card's rate different?
Reference rates are mid-market rates for information. Banks, card networks and exchange bureaus add a margin to them, often 1–3% for cards and more at airport kiosks, and may charge a separate foreign transaction fee, so you will usually receive a little less.
How often are the rates updated?
Once per working day. On weekends and TARGET holidays the ECB does not publish rates, so the most recent working day's rates are shown with their date.
Can I see historical exchange rates?
Yes. Choose a date to see that day's reference rate, back to January 4, 1999, when the euro was introduced. For a weekend or holiday, the previous working day's rate is used.
Which currencies are available?
The euro and the 30 or so currencies in the ECB's daily list, including the US, Canadian, Australian and New Zealand dollars, the pound, Swiss franc, yen, yuan, Scandinavian and Central European currencies, the Mexican peso and the South African rand. Currencies the ECB does not publish are not included.
Is this suitable for accounting or tax?
ECB reference rates are widely used for bookkeeping and for converting foreign income, but tax authorities can require specific rates; the IRS, for example, publishes yearly average rates. Check which rate your tax office or auditor expects.
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