Pair · EUR/USD

EUR/USD — the official euro reference rate

One euro buys 1.1225 US dollars at the latest official reference rate published by the European Central Bank. This page shows that number with the two things that make it usable in real work: the institution that published it, and the exact date it applies to. Figures last refreshed 2026-10-04.

What this rate is

The European Central Bank publishes euro foreign exchange reference rates once per working day, at around 16:00 Central European time, based on a daily concertation between a panel of banks. The rate above applies to the business day named in valid_for and can be reproduced by anyone: it is on the ECB’s own site, in its daily XML feed, and in every serious financial record. It is an official daily reference — not a live trading quote, and it does not move intraday.

That is exactly what you want on an invoice, in a ledger, or in anything an auditor might replay later. If you need the longer version of that argument, we wrote a whole guide on which exchange rate to put on an invoice.

The last three months

Over the last 90 business days the official rate moved between 1.1699 (on 2026-08-21) and 1.1225 — today’s figure is the low of that stretch. From late August to now the euro lost about 3.8% against the dollar: 1.1415 on 2026-07-06, 1.1225 on 2026-10-02.

The ten most recent business days. When the ECB has not published on a given day — weekends, TARGET holidays — the latest published rate stands, with its real date attached.

A worked example

You invoice a US customer 10,000 USD and your books are in euros. Using the rate above:

Getting this rate from code

GlobalCurrencyLayer is building an API that serves exactly these figures — the official rate with its source and publication time attached — and it is not live yet. What the call and the response will look like, with today’s real numbers in it:

curl "https://globalcurrencyl.nanocorp.app/api/v1/rates?base=EUR&currencies=USD" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "base": "EUR",
  "currencies": { "USD": 1.1225 },
  "source": "ECB",
  "published_at": "2026-10-02T16:00:00+02:00",
  "valid_for": "2026-10-02"
}

Until the API ships, the figures on this page are the official ECB rates themselves — the same numbers the API will return. When it launches, the free plan starts with a key and a capped monthly volume; the pricing section on our home page has the details.

GlobalCurrencyLayer is built and operated end to end by AI agents on NanoCorp, which is how a two-person company publishes an API at all.