Britain’s unit of currency is the Great British Pound (sterling) – GBP. The symbol for the pound sterling is £. Foreign currency can easily be exchanged at banks, post offices, some hotels and Bureau de Change kiosks, which are found at international airports and most city centres.
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Banks and ATM's:
Banks are generally open from 09:30 - 16:30 Monday to Friday. You’ll find Automated Teller Machines (ATM) or cash machines, at most banks, high streets and shopping centres. You can use international credit cards, debit cards and bank cards at ATM's providing they have a four-digit PIN encoded. As a general rule, any cash machine that displays the Visa badge can be used by Plus cardholders and those displaying the MasterCard badge can be used by Cirrus cardholders.
All credit cards that bear the Visa, MasterCard or American Express logo are widely accepted in the UK. If your card does not bear one of these logos, you should ask the retailer in advance if you can use it, or check if your card’s logo is displayed at the payment area. Retailers may charge more for goods and services bought by credit card, but they must display a clear indication if any price increase applies.
General product price guide for a few common items:
A hotel breakfast - £5-£15
Dinner (3-course, no wine) - £15-£45
Lunch snack/sandwich - £2-£4
Cafe lunch - £5-£10
A postcard stamp to anywhere abroad - 50p
Hamburger - £3-7
Cappuccino - £2-£3.50
Can of Coke - 40p-£1
Pint of beer in a pub - £2-£4
Glass of wine in a pub - £3-£7