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Currency Converter

Convert using today's European Central Bank rates.

Rates from an external provider · your amount stays private

Currency Converter at a glance

Price
Free
Sign-up
Not needed
Privacy
Only exchange rates are downloaded
Source
European Central Bank via Frankfurter
Updates
Every working day, ~16:00 CET
Your amount
Never sent anywhere
Last updated
8 October 2026

What it can do

  • Convert between about 30 major currencies
  • Daily European Central Bank reference rates
  • Shows the rate date and source
  • Works offline with the last saved rates

Help & FAQ

How to use the Currency Converter

How to use the currency converter

  1. Enter an amount.
  2. Choose the currency you have and the currency you want. Use the swap button to reverse them.
  3. Read the converted amount and the exchange rate in both directions. The rate date and source are shown underneath.

How the conversion works

The European Central Bank publishes the value of about 30 currencies against the euro. To convert between two non-euro currencies, the calculator uses a cross rate:

rate(A → B) = (B per EUR) ÷ (A per EUR)

For example, if 1 EUR = 1.10 USD and 1 EUR = 0.85 GBP, then 1 USD = 0.85 ÷ 1.10 = 0.7727 GBP. Converted amounts are rounded to two decimal places for display.

Caching and availability

Rates are kept on your device for up to six hours to avoid repeat downloads. If the provider can't be reached, the converter shows the last rates it downloaded on this device, with a clear notice and the date they were published. If there are no saved rates, it shows an error instead of guessing.

Currencies covered by the ECB include the US dollar, British pound, Japanese yen, Swiss franc, Canadian and Australian dollar, Chinese yuan, Indian rupee, Swedish, Norwegian and Danish krone, and others. Some currencies, such as the Russian rouble, are not published by the ECB.

Where do the exchange rates come from?
From the European Central Bank's daily reference rates, delivered by the free, open-source Frankfurter service. The ECB publishes new rates once per working day, at around 16:00 Central European Time.
Why is the rate different from my bank or card?

Reference rates are mid-market rates with no fees. Banks, card networks and exchange offices add a margin or commission, so the rate you are charged is usually less favourable. Use this converter for estimates, not for settling transactions.

What information is sent to the rate provider?

Only a request for the full table of euro reference rates. The amount you enter and the currencies you choose are calculated in your browser and are never sent to the provider or to SomethingTools.

Why are rates not updated at weekends?

The ECB doesn't publish rates on weekends or TARGET holidays, so the most recent working day's rates are shown with their publication date.