Finance · exchange

Currency Converter

ECB reference rates via Frankfurter — mid-market, not a bank quote.
same engine as
Unit Converter → Currency

Amount

Rates are European Central Bank reference rates published via Frankfurter (not live interbank quotes). Cached in your browser for the day. Needs network once per day.

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What you will actually receive
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Rate history
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Important Not financial advice. Every figure here is an illustrative estimate for general information and education. It is not financial, investment, tax, mortgage or legal advice, not a personal recommendation, and not a quote or an offer. Rules of Thumb is not authorised or regulated by the Financial Conduct Authority and does not carry out regulated activities. Rates, fees and thresholds change and may be out of date. Before acting on anything here, speak to a qualified financial adviser, mortgage broker, accountant or your lender, who can take your own circumstances into account. See the Terms of Use.
Field notes

Nobody will actually give you this rate

How it works

Currency conversion

Same rate source as the Currency category in the Unit Converter — exposed here for people who only need money. Conversion is amount × (rateto / ratefrom) against EUR base rates. What you get is the mid-market rate: the midpoint between what buyers and sellers are asking on the wholesale market. It is the right number for working out what something ought to cost, and the wrong number for predicting what will leave your account.

Worked example

Say the mid-market rate is 1.170 euros to the pound — the figure this page shows. Changing £1,000 gives €1,170.

A bureau advertising "0% commission" at 1.135 hands you €1,135. There is no fee anywhere on the receipt, and you are €35 short: the charge is the 3% gap between their rate and the real one. Comparing the quoted rate against the mid-market rate is the only reliable way to see the cost.

Are these live market rates?

No — they are ECB reference rates, typically updated once on working days. Banks add spreads and fees.

Why does this need the internet?

Fixed unit factors never change; exchange rates do. Your browser requests rates from Frankfurter and caches them for the day.

What this page assumes

That the headline conversion is the mid-market reference rate, with no spread, commission or fixed fee — the best case you will never quite be offered. The real-cost panel then applies whatever spread and fixed fee you enter, and that is the figure to plan around. Neither knows what your own provider will actually charge: the defaults are typical, not quoted. Rates are fetched once and cached for the day, and the date they were published is shown next to the result. If the fetch fails the page says so rather than showing you a stale number.

Reference only. Not a bank quote or payment service — verify with your provider before sending money.
Version history · 3 releases
  1. v0.772026-07-27Currency Converter gains a cached rate-history chart (30d/90d/1y/5y) with an honest offline state
  2. v0.972026-07-28Currency Converter now computes what you actually receive — spread and fee, not just the mid-market rate
  3. v3.882026-08-22"Cached for the day" was true about a quarter of the time, and never at a weekend

Releases in which this page changed, newest last. Derived from the archived copy of every release, not from notes written afterwards — so it reflects what actually shipped. Site-wide passes are left out; they are in the full changelog.