Convert currencies using the ECB exchange rate from any past date (back to 1999).
Uses official historical ECB reference rates (needs an internet connection).
How do you find a historical exchange rate?
Converted amount = amount × (rate of the target currency ÷ rate of the source) on the chosen date, using the European Central Bank daily reference rates quoted against the US dollar. Rates are available from 4 January 1999. Weekends and holidays return the most recent prior business-day rate, so the rate date may differ slightly from the date selected.
Understanding your result
The ECB publishes one reference rate per business day. For weekends and holidays the most recent prior business-day rate is used, which is why the rate date may differ slightly from the date you picked.
Formula and method
Converted amount = amount × (rate of target ÷ rate of source) on the chosen date, where rates are the ECB daily reference rates quoted against the US dollar.
Assumptions and limitations
Rates begin on 4 January 1999 (the euro era) and are daily reference rates, not intraday or dealing rates. Not every currency is available on every historical date.
Worked example
Using the rate from 2 January 2020, 100 US dollars converts to about 89 euros.
How to use this tool
- Enter the amount to convert.
- Choose the currencies to convert from and to.
- Pick the historical date and read the rate for that day.
Common mistakes to avoid
- Expecting a rate for a weekend or public holiday — the previous business day is returned instead.
About the Historical Currency Converter
Look up what an amount was worth on a specific past date using official European Central Bank reference rates. Pick the currencies, enter an amount and choose any date from 1999 onward.
Who should use this tool
Accountants, researchers, travellers reconciling old expenses and anyone who needs the exchange rate as it was on a particular day.
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Frequently asked questions
How far back can I go?
To 4 January 1999, the first business day the ECB published euro reference rates.
Why is the rate date different from the date I chose?
Rates are only published on business days, so weekends and holidays return the most recent prior trading day.