About EUR and GBP
Euro (EUR)
The euro is shared by the euro-area countries of the European Union and is divided into 100 cents. Because many countries use it, one cash supply covers a multi-country trip. Prices are comparable in form across countries but not in level: the same coffee can cost far more in one euro country than in another.
British Pound (GBP)
The pound sterling is divided into 100 pence and is used in the United Kingdom. Scottish and Northern Irish banks issue their own notes, which are valid but are sometimes refused in England, so spend them before you leave those regions. Contactless card payments are accepted almost everywhere, so you need little cash.
Exchanging EUR for GBP
The rate above is the mid-market rate for EUR to GBP. Banks, card networks and exchange desks usually apply a margin or a fee, so compare the amount you would actually receive. If a terminal offers to charge you in EUR instead of GBP, decline: that conversion normally uses a worse rate.